Source: https://serenade87.deviantart.com/art/D ... -723741541
Time travel and alternate timelines have always been a subject of much complexity that’s not just limited to Dragon Ball, but several other stories like Flash, Back to the Future, Doctor Who, and Steins Gate. We were first given an official explanation in the Daizenshuu 7 showing 4 distinct timelines in Dragon Ball Z. The fourth timeline, called the “Unseen” timeline, has been heavily debated and did not make logical sense to many people.
Hence, today I will explain how the fourth timeline, the Unseen Timeline, CAN indeed fit with logic and explain everything. I have gathered all the information from DBZ, DBS, Daizenshuu, and Chouzenshuu to explain all the different timelines, how they were created, when they were created, and the what if scenarios of the unknown timelines. This will explain timelines in Dragon Ball completely once and for all. It will be a three part series. The first part will discuss the original 4 timelines before Dragon Ball Super and the second part will discuss the new timelines that were added after Dragon Ball Super. The third part is the expanded DB universe (DBO, Xenoverse, DBH, and movies) to see if alternate timelines can be exploited to still have them fit. Without further ado, let’s begin!
A couple of timeline rules before we start:
1. New Timelines are created when changes are done in the past which create a paradox.
Source: Chapter 14, Page 19
To put it simply, timelines are created to prevent a paradox. A paradox is something self-contradictory like being in two different places at the same time. It can’t occur due to the natural laws of physics, so a parallel timeline is created. Minor changes like killing a butterfly or stepping on poop don’t count as “significant”. Yes, one can argue that minor changes can lead to a “butterfly effect” where a chain of minor events lead to a much more significant event. However, so far in DB logic, this is not the case unless explicitly shown that there is a significant event change. A paradox usually happens when a change occurs in the past. Changes in the future don't create new timelines. (Future Trunks killing Cell in the future, is still a point in the past with respect to his own timeline.) If you travel to the future and kill yourself, a new timeline isn't created because this isn't a paradox.
Source: Chapter 14, Page 23
2. Time rings and Time Scrolls are both natural ways of time travel. Time Rings can only go to the future and then back. They do not create alternate timelines even if changes are done in the future.
3. The silver time ring represents the main timeline or the reference timeline while the green ones represent alternate timelines.
4. When a timeline is erased, the time ring also disappears.
5. Time flows equally in each timeline. No timeline is faster or slower than another. Time that passes in one timeline also passes in another. (Credits to Terra-jin for helping me with this rule)
In DBS, Black invaded the future timeline in Age 795. Trunks spent a year fighting Black and collected enough fuel for another trip. Now it is Age 796 in the future. Thus, 11 years (796-785) passed in the future since his last visit. Therefore, 11 years also passed in the main timeline since the time he left, Age 767, May 27 + 11 years=Age 778, May 27. Yet, Trunks took the time machine to the main timeline on Age 779, December, which is 1 year and 7 months from Age 778, May 27. Thus, he changed the settings on his time machine to 1 year and 7 months forward (Age 779, December - Age 778, May 27). Each time they visited the future to fight Black, the same time also passed in the main timeline.
Makes sense so far right? Now let us start with the first official chart showing 4 distinct timelines in the Daizenshuu 7:
Source: Daizenshuu 7
In 2013, the Chouzenshuu were released which are 4 books that are the revised and updated versions of the 7 Daizenshuu. Surprisingly, the Chouzenshuu 4 excluded the fourth timeline - the Unseen Timeline. At first, this might seem good since fans could never explain the Unseen timeline. However, there is now a contradiction with DBS. The reason is that when Gowasu first opens the box of time rings, we see 5 total time rings which means 1 main timeline and 4 alternate timelines. If we go by the Chouzenshuu 4, then there are 2 missing timelines. One of them can be explained because it is the timeline created by the Universe 12 time traveler, but what about the other one? Therefore, a fourth timeline is required in order to satisfy the number of time rings shown when Gowasu first opens the box.
So we go back to the Daizenshuu 7 and look at the original timeline chart. Note the numbering of the timelines has nothing to do with the order in which the timelines were created. This is just how Toei named them with Timeline 1 always being the main timeline. Main does not mean original though.
So let us begin with the original original timeline before any time travel. As per the Toei chart, we see that the original timeline is the one from which Future Trunks is from called Timeline 3. Hence, if we opened the box of time rings, we would only see 1 silver ring.
Contrary to popular belief, Trunks was not the first time traveler in history. Xenoverse does mention that Trunks was the first time traveler in history for Universe 7, but not all of time! It was stated by Gowasu in the manga (Chapter 17 and 26) that the very first time machine in history was created by a mortal in Universe 12 and it resulted in the first new time ring. To prevent misuse, it was confiscated by the Universe’s Kaioshin, Ugg, before it could be used again. When Zamasu and Black went on their rampage of killing Kaioshins, they took the universe 12’s time machine for themselves. Though they never used it, they had planned to follow Goku and the gang to the past if they escaped again. So after the events of the Universe 12 time traveler, a new time ring was created. The main timeline got split into Timeline 1 and Timeline 5. Remember that 5 is because of the way Toei defined the numbering for the other 4 timelines. Timeline 5 is the first alternate timeline despite 5 in its name. Now there are 2 rings total:
Source: Chapter 17, Page 9
Source: Chapter 26, Page 9
Then in DBZ, Future Trunks goes back in time from Age 784 to Age 764, splitting the main timeline into Timeline 1 and Timeline 3. He already significantly changed events by killing Freeza and King Cold, assuming that Goku couldn’t have used Instant Transmission to do it himself. He gives Goku the heart medicine. Then he goes back to the future. He did this not because he expected Goku to be alive in the future, but because together with Goku, he may learn how to defeat the Androids in the past, which would help him to defeat the Androids in the future. As per the Toei chart, we see that the original timeline is the one from which Future Trunks is from called Timeline 3. So the new main timeline is no longer the "original" timeline. Now there are 3 time rings total:
Hope you’re keeping up!
In the future, it takes Trunks one full year to recharge the time machine with Electro Blue no. 15 fuel before he could make another trip. This time, he goes back from Age 785 to Age 767, three years after he last visited. He goes back to the same main timeline, Timeline 1, but a new timeline is NOT yet created! This is because there is no significant change or paradox yet. In this timeline, Trunks and Krillin find Dr. Gero’s basement lab where the blueprints for the Androids are (Chapter 365). Upon finding these blueprints, Trunks had everything he needed to defeat the Androids in his own future. Trunks immediately went back to his own timeline (Timeline 3) to give these blueprints to future Bulma. Then, future Bulma was able to create the shutdown controller for Android 17 and 18. Trunks used this to defeat the Androids in Age 786. Imperfect Cell arrives two years later in Age 788, unable to find the Androids, so he kills Trunks (who did not train with Vegeta in the Room of Spirit and Time) and takes the time machine back to the main timeline, Timeline 1 to Age 763, 1 year prior to when Trunks had arrived. Now we have a paradox!
Source: Chapter 365, Page 7
Cell’s arrival in the past creates a significant change in history and that change occurred when Trunks sees the photos of his own time machine and Cell’s cocoon (Chapter 358). This was the trigger and for Trunks to make the decision to not leave and train in the Room of Spirit and Time with his father.
In the future, Trunks killed Cell because he trained in the Room of Spirit and Time. He trained because Cell came back in time. Cell came back in time because he killed Trunks in the future. Thus, there is a paradox. To fix this paradox, a timeline must be created where Trunks killed Cell and one where Trunks was killed by Cell.
Thus, Cell’s arrival to the past created a paradox, splitting the main timeline again into Timeline 1 and Timeline 4. Now there are 4 time rings total.
Source: Chapter 358, Page 1 or Episode 140
Timeline 4 has always been one of the biggest mysteries in DBZ. Many fans believed that the Daizenshuu 7 made a mistake in this timeline. Cell arrived in Age 763, 1 year before Trunks first arrived. The Daizenshuu stated that in this timeline, there is a Cell Games without Trunks, but how can that happen? If Cell came from the future, stealing Trunks’ time machine to go to a single timeline, then how can he be in two different timelines? That is, where did this other Cell come from? Even the Chouzenshuu excluded Timeline 4 because it didn’t make sense. We still need a fourth timeline though because of the number of time rings, but we just need to fix it.
Fixed Timeline 4 (theory):
I would love to try to fit this theory, but unfortunately it's difficult. In fact, when Trunks visited the past to Age 764, that split the original timeline, creating a new main timeline. Then Trunks visited a second time to Age 767, but that didn't create a new timeline, since it is 3 years forward from Age 764. Yet, when Cell came back to the past in Age 763, that is 1 year before Age 764, so it should have split the original timeline, creating a timeline. It seems though, that it instead split the main timeline, creating two timelines with Cell, but one in which Trunks leaves and another where Trunks stays. It's hard for me to imagine though what causes Trunks to not see the photos of Cell's cocoon if he is present in the timeline? If this theory does work, then you can quite possibly fit GT in this timeline. I was able to fit GT in Timeline 5 though.
After the Cell games in Timeline 1, Trunks goes back to his future. Since he trained with Vegeta, he was able to kill both the Androids and Imperfect Cell easily with his own power, thus creating a new paradox. A timeline is thus created in which Trunks killed Cell while keeping the original timeline in which Cell killed Trunks. The future timeline is split into Timeline 3 (original) and Timeline 2. Now there is a total of 5 time rings. (Note that in the expanded DB universe, Chronoa, the Kaioshin of Time, at this time recruits this Future Trunks (purple hair) to become a Time Patroller). Later, this timeline is erased by Zeno.
To summarize, we got 5 timelines before the start of DBS:
Timeline 1 - Main Timeline. Cell Games with Trunks. Trunks decides to stay and train in the Room of Spirit and Time.
Timeline 2 - New Future Timeline. Trunks kills Android 17, 18, and Cell with his own power.
Timeline 3 - Original Timeline. Trunks gives blueprints to future Bulma to make a remote shutdown controller. Trunks uses remote to defeat Android 17 and 18. Cell kills Trunks and takes the time machine.
Timeline 4 - Unseen Timeline. No Cell Games. Trunks leaves with the blueprints he finds from Dr. Gero's basement lab and returns to Timeline 3.
Timeline 5 – First Alternate Timeline. A mortal from Universe 12 used the first time machine in history to go to the past.
With me so far? Everything I've told you so far is consistent with the facts in the manga, anime, and Chouzenshuu 4. We kept a fourth timeline but we removed Perfect Cell from it fixing Daizenshuu’s 7 mistake.
Now let's begin with Dragon Ball Super. Gowasu opens the time ring box for the first time (Chapter 17, page 9 and Episode 49) and what do we see? We see 4 green time rings and 1 silver ring. That's a total of 5 rings or 5 timelines. This is exactly what we got!
Source: Episode 54, 12:08
Gowasu further comments that someone has created a new time ring recently since he last opened the box. In the anime, he said a new ring was added just a few years ago.
Source: Chapter 26, Page 9
Source: Episode 54, 13:26
If it was created a few years ago, then it couldn’t have been caused by Trunks arriving with the time machine now in the Zamasu arc. This means that the last time ring had to be created from the Cell Saga when Trunks used his time machine for the third time in Age 767, a few years before Age 779 which is when the Zamasu arc started in DBS.
Let’s continue. So after the events of the U6 Tournament, Zamasu learns of Goku from watching GodTube.
Source: Chapter 17, Page 30
He goes to Zuno and learns everything about the Super Dragon Balls. He kills Gowasu, taking the time ring. Then he gathers the Super Dragon Balls and wishes to switch bodies with Goku to become Black. Then kills Goku and his family. Now to escape Beerus, he needed to travel to a timeline where there is no Beerus. Thus, he traveled to Timeline 2 – the Future Trunks timeline.
In Timeline 2, after Trunks killed Cell. A few years later, Babidi and Dabura arrive. Trunks trains with Shin, achieves SSJ2, and kills Dabura with Shin dying in the process, which also kills Beerus. Thus Timeline 2 did not have a Beerus and Black could carry out the Zero Mortals Plan.
He found Future Zamasu, helped him kill Gowasu, taking another time ring. The two Zamasus gathered the Super Dragon Balls, but since Goku was not alive in this timeline, Future Zamasu instead wished for immortality! It works out to Black’s plan because he needed Zamasu to use his healing powers to get zenkai boosts. From the zenkai boosts, Black learns Goku’s body more and makes it his own. Future Trunks from Timeline 2 eventually escapes back to Timeline 1. Remember a new timeline still has NOT been created! Trunks warns Goku of Black. They eventually figure out that Zamasu is behind the whole thing so Beerus hakais him. THIS causes a significant change, splitting the main timeline again to Timeline 1 and Timeline 6 with the latter being the timeline from which Zamasu is alive and successfully becomes Black.
Beerus thought that using hakai on present Zamasu would eliminate all versions of that Zamasu in other timelines but he was wrong. It only made matters worse by creating a new timeline and time ring, giving us a total of 6 time rings, 5 green and 1 silver.
Source: Chapter 20, Page 5
Then, when Zeno sama erases the entire Timeline 2 (Future Trunks’ timeline), one of the time rings disappears from the box as shown in the manga, Chapter 26. So now there’s 5 time rings total. So if the timeline is erased, how can Goku still travel back to it to pick up future Zeno? Even though the natural way to travel (the time ring) to the timeline is gone, it is still possible to use a time machine to travel to the specific location of Future Zeno since the settings of the time machine were already tuned to a specific frequency that corresponded to the erased timeline. This was explained by Pilaf.
Source: Chapter 26, Page 24
Source: Chapter 26, Page 32
But we aren’t done yet! In the end, Trunks and Mai decide that they want to travel back to the future before Dabura and Zamasu. Whis and Beerus give them permission to do so. This splits the future timeline into Timeline 2 and Timeline 7 which the former is erased and the latter has two pairs of Trunks and Mai. Whis travels to this timeline to wake up future Beerus early and warn him of Zamasu. Zamasu is sealed by Beerus permanently.
Source: Chapter 26, Page 39
Source: Chapter 26, Page 38
This is Toei's latest chart explaining the timelines after the Zamasu arc:
This chart only shows the anime version of events but without the manga, we would get a time paradox. Zamasu becomes evil after losing to Goku -> Goku fights Zamasu because Trunks -> Trunks travels back in time because of Black -> Black is created by Zamasu after he becomes evil. This creates a never ending loop! We don’t know the start point. In the manga, we know that even without Goku, it is GodTube that is the start point.
Now for the fun part – theory. There is an expanded DB verse that is beyond just anime and manga. It includes Dragon Ball Online (DBO), movies, OVAs, Xenoverse, Dragon Ball Heroes (DBH), and other video games. Apart from DBO, most of these are considered to not be “canon”. Now a lot of people do not like to use the word, “canon”. Rather, it’s better to look at “continuity”. That is, is there a way to fit the above possible stories without contradiction? The Daizenshuu 6 has tried to place the movies in the timeline. There are only two timelines available for us to use for these other stories – Timeline 4 (Unseen) and Timeline 5 (First Alternate Timeline). The latter is a blank slate which means we can make it whatever we desire. I will try to see with logic, if it is thus possible to fit in the expanded DB verse using these two timelines.
So to now summarize based on the above chart from Toei: (italics are theories or fanfiction)
Timeline 1 (light blue) – Main Timeline, the one we watch on tv; Created when Beerus hakai’d Zamasu. Goku is alive. Universe 7 wins the Tournament of Power. You know this story already.
Expanded DB verse (theory):
Around Age ~850, Towa along with Mira, begins collecting kiri (energy) in order to break the seal of the demon realm to free her comrades. To do this, she creates time anomalies she creates in history by creating portals through time with dark magic. Chronoa notices these anomalies and thinks they are the result of Future Trunks again messing with time, so she summons Trunks from Timeline 7. To redeem himself and help Chronoa, he assumes the role of Xeno Trunks and together, create the Time Patrol. Towa creates a portal to send Bardock in Timeline 5 back in time just before he was killed by Freeza. This causes Bardock to fall on Planet Plant, and the events of Episode of Bardock begin. After Bardock kills Chilled, Towa and Mira together capture Bardock and brainwash him using a Dark Mask, turning him into Time Breaker Bardock. The Mask increased Bardock's power. Chronoa and Trunks are able to find Towa and Mira. SSJ Trunks defeats Bardock, enough to break his mask. Bardock and Trunks together then defeat Mira but Towa and Mira escape. The tampering with time due to Towa, weakened the barrier between dimensions and freed Demigra from the Crack of Time. The events of XV1 occur. To help Trunks, Chronoa also summons Xeno Goku from Timeline 5 (GT) 60 years after the defeat of Omega Shenron where Goku now has an adult body. Xeno Goku trains Trunks, which causes Trunks to achieve SSJ3 but can only maintain the transformation for 10 seconds. In addition, Xeno Goku teaches him the fusion dance so that he can perform it later if needed. The events of the Dark Demon Realm saga begin. Eventually, enough kiri is collected to break the seal of the Demon Realm, freeing Mechikaboola, the ruler of the Demon Realm. Towa and Mira brainwash Dende from the future to create another set of Dragon Balls, called the Dark Dragon Balls. Chronoa summons more characters such as Xeno Goten, Xeno Vegeta, and Xeno Gohan, all from Timeline 5 (GT) to help. Mechikaboola successfully wishes for his youth. Chronoa uses her magic to seal herself and Mechikaboola in another dimension. With the entire Dark Demon army sealed, Demigra begins to carry out his plans without any problem. Xeno Goku investigates an anomaly created by Fu, Towa and Mira's artificial son. The events of Universe Mission Prison Planet Saga begin. Using his knowledge of magic, Fu finds the most powerful binding spell in history and uses it to chain 7 planets together, creating the Prison Planet. Fu also gathers the Dragon Balls from Earth from the past and brings them to the Prison Planet. Fu then captures prisoners from different eras in time including an ancient Saiyan from Planet Sadala in Universe 7, named Cumber. He uses the energies he already gathered from time rifts and experiments on Cumber, making him stronger. He lures Xeno Goku to the Prison Planet, hoping to imprison him there.
Meanwhile in Age 780, the Tournament of Power has ended with Universe 7 being victorious. All the universes have been wished back. Goku and Vegeta are training with Whis. Trunks and Mai visit them and also joins in on the training but is captured by Fu on his way back in Timeline 7. This causes Goku and Vegeta from Timeline 1 to rescue Trunks. Eventually, the chains that held the Prison Planet together break from the fight between Cumber and Xeno Vegito.
After the events of the Prison Planet Saga, Goku and Vegeta return to their timeline (Timeline 1) and resume training. Freeza arrives in a spaceship with Paragus and Broly. The events of the DBS Broly movie begin.
Timeline 2 (green) – Future Trunks Timeline, erased by Zeno. Created when Trunks kills Imperfect Cell in the future. Trunks kills Android 17, 18, Cell, and Dabura. Shin is killed by Babidi causing Beerus to die. Black invades this world, kills Gowasu and recruits Future Zamasu. Goku and Vegeta from Timeline 1 fight Black and Zamasu. Eventually, Infinite Zamasu happens and Zeno to erases the timeline.
Expanded DB verse (theory):
Timeline 3 – Original Timeline, Future Trunks uses shutdown remote controller to destroy Android 17 and 18. Imperfect Cell kills Trunks and takes the time machine. There are no strong fighters left on Earth. Buu is not revived due to lack of sufficient energy.
Timeline 4 – Unseen Timeline. Trunks arrives a second time and takes the blueprints from Dr. Gero’s basement lab to his own timeline, Timeline 3, never training in the Room of Spirit and Time. Cell Games may or may not occur. Created when Trunks first travels back in time to give Goku the heart medicine. Events of the Buu saga, Battle of Gods, Revival of F, and Zamasu arc occur as in Timeline 6.
Expanded DB verse (theory):
Timeline 5 – First alternate timeline. This timeline was created by the actions of an unknown mortal from Universe 12 from Timeline 3 using the very first time machine in history. This time machine was later confiscated by the Universe 12's kaioshin. Black and Zamasu found this time machine in Timeline 2 after killing the kaioshin and planned to use it to follow Goku and co. as Infinite Zamasu. We don't know anything about this timeline, so it's free for our imagination.
Expanded DB verse (theory):
Let us assume that the change the mortal from Universe 12 made, caused a ripple, affecting space-time which also affected Universe 7’s history. The first change, altered Planet Sadal's history 238 years Before Age. Yamoshi turned into a SSJ and then into a Golden Oozaru. He was outnumbered and defeated but his spirit never wandered. Thus, Namekian book of legends did not record or foretell a SSG. Thus, the prophecy the Oracle Fish made changed. Beerus never set an alarm clock to wake up 39 years later nor dreamed about the SSG and kept sleeping. In this timeline, the events of DB Minus did not occur. Instead, Gine dies from childbirth. This causes Bardock’s personality to change. He becomes more ruthless and more ambivalent toward his son, Kakarot. The events of the History of Bardock TV Special occur. At this time, Kakarot’s crying also irritates baby Broly. Bardock is transported to the past just before he is killed by Freeza’s death ball due to magic by Towa. The events of the Episode of Bardock occur with Bardock becoming a SSJ and defeating Chilled on Planet Plant. Towa later abducts this Bardock, using her science to further strengthen and brainwash him to becoming Time Breaker Bardock. The first three Dragon Ball movies occur in this timeline. The second change - Goku attacks the Red Ribbon Army earlier based on the events of the 10th Anniversary Dragon Ball movie, "The Path to Power". Dr. Gero's son, who looked exactly like Android 16, was a soldier of the Red Ribbon Army, and was killed in crossfire during the battle with Goku. Enraged at this, his research on Cell began sooner and started to collect the DNA of different fighters.
Movie 1 occurs after the 23rd Tenkaichi Budokai and before Raditz arrival. Garlic Jr. is sent to the Dead Zone. The events of the Saiyan Saga occur but with Goku arriving to the battle before anyone is killed by Nappa. Nappa is killed and Vegeta is defeated. Goku arriving earlier made him not sustain injuries that required him to stay at the hospital. Before Bulma, Gohan, and Krillin go to Namek, Movies 2, 3, & 4 occur with Dr. Wheelo, Turles, and Slug being defeated by Goku. After this, the events of the Freeza saga occur. Following the events of the Freeza saga, Goku learned the Shunkan Ido from the Yardrats but he never acquired the heart virus. Goku defeated Cold and Freeza himself arriving at the nick of time with Shunkan Ido. During the next 3 years, Vegeta trains independently off Earth to unlock Super Saiyan. Movie 5 occurs with Cooler being defeated by Goku. Movie 6 occurs shortly after with the defeat of Metal Cooler by both SSJ Goku and SSJ Vegeta. Three years have passed. Dr. Gero and Android 19 attack South City on May 12, Age 767 like in the main timeline. Dr. Gero retreats to his lab where Android 17 kills Dr. Gero. Android 16 is awoken. The same events of the Androids occur as in the main timeline. (We see flashback of 16, 17, and 18 at the end of GT.)
The Z senshi fight the Androids but now with SSJ Goku’s help. They are still defeated. Goku uses the Shunkan Ido to strategically retreat and transport the Z senshi to Kami’s lookout. The infinite energy model Androids are unable to sense ki and hence cannot detect where Goku is. Meanwhile, Cell continues to grow uninterrupted in Gero’s basement lab as it was never discovered. He is at a much advanced stage of development due to Dr. Gero’s research on him starting earlier. Due to this, Imperfect Cell comes out a few days after the Androids. Imperfect Cell confronts the Androids eventually. Kami decides to fuse with Piccolo much earlier than the main timeline to help face a greater threat than the Androids - Cell. Due to this, the Dragon Balls are inactivated. Pilaf, Shu, and Mai’s plans get delayed and they do not collect the Dragon Balls to wish themselves youthful. Piccolo together with Android 17 face Imperfect Cell. While Piccolo buys some time, Goku informs his friends of the Room of Spirit and Time (RoSaT), in which he had previous knowledge of when he trained with Kami in Dragon Ball. The chamber can only be entered for two days (actual) or two years (RoSaT) but there is only enough food for 2 people for 1 year. Goku wants to train with Gohan, so he allows Vegeta to enter for 1 day. Goku and Gohan follow after. Imperfect Cell successfully absorbs 17, turning into Semi-Perfect Cell. Vegeta comes out of the RoSaT, and easily defeats Semi-Perfect Cell. Due to his ego, he allows Cell to absorb 18 as well despite best efforts from Krillin and Tien to prevent him. The 10-day wait of the Cell Games begin.
Meanwhile in the future, Future Trunks from Timeline 2 has killed Imperfect Cell and the Androids. Chronoa, the Kaioshin of Time, has already recruited Trunks to join the Time Patrol. Trunks helps Chronoa by preventing Mira and Towa from messing with time. The actions of the Time Patrol all happen outside of time since the Time Nest is a dimension outside of the 12 universes or time and space. Chronoa teaches him how to build time machines so that they do not create new distortions or timelines. Eventually, after a year in his own time, Future Trunks (purple hair) goes back in time to visit his friends, but instead of returning to the main timeline, he ends up here in Timeline 5 because the settings for the time machine got changed after it was upgraded by Chronoa. He re-introduces himself to the Z senshi and explains who he is.
Eventually, Paragus arrives to Earth and invites Vegeta to Planet New Vegeta, starting Movie 8. Broly is defeated by Goku absorbing the energies of Trunks, Gohan, Piccolo, and Vegeta. Broly then floats in space, frozen in ice for 7 years. Meanwhile, Dr. Raichi, a scientist who is a survivor of the Tsufuru-jin race from Planet Plant, devises a plan to get revenge on the Saiyans. He puts devices on Earth that emit Destron Gas. Mr. Popo finds out and informs the Z senshi a few days after Movie 8. Thus, the OVA, “Plan to Eradicate the Saiyans” occurs. The ghost warriors – Kooler, Freeza, Slug, and Turles, all of who have appeared in this timeline before are defeated again. The final boss - Hatchiyack is defeated. Future Trunks does not stay to participate in the Cell Games a second time. As he is afraid that knowledge of the future may change the outcome, he does not inform the Z senshi how Perfect Cell is killed or about Goku’s death. Future Trunks spends another year helping Future Bulma rebuild West City. Meanwhile, in this timeline, the Cell Games occur but without Trunks. SSJ2 Gohan does not lose his left arm protecting Vegeta due to the absence of Trunks. He kills Cell using a Kamehameha with both hands. Goku and North Kaio still die, freeing Bojack from his prison, starting Movie 9. A few months later, a world martial arts tournament is held. Future Trunks has collected enough fuel for another final trip to the past and arrives again as confirmed by Bulma in the movie. Future Bojack is defeated by SSJ2 Gohan. Future Trunks returns to his timeline. Goten and Trunks find Broly frozen in ice. Movie 10 occurs before the start of the 25th Tenkaichi Budokai. Spopovich and Yamu take the energy from SSJ2 Gohan. This causes Shin, Kibito, and the Z senshi to leave the tournament. The 25th Tenkaichi Budokai ends with Mr. Satan the winner and Android 18 the runner-up. Movie 11 starts with Android 18 is asking Satan for the prize money. Bio-Broly is defeated by salt water with the efforts of Android 18, Goten, and Trunks.
Meanwhile, Goku, Vegeta, and Gohan fight Babidi’s warriors in his spaceship. Unlike the main timeline, Gohan loses in rock paper scissors and fights Pui Pui first. Vegeta fights Dabura. Due to this, Vegeta does not get irritated by Gohan and is able to keep his composure for a longer period. The fight continues until Dabura realizes that there is a hint of evil ambition inside Vegeta. He tells Babidi to exploit it. Vegeta allows himself to become Majin to close the gap between him and Goku. The events of the Buu saga occur with Vegeta sacrificing himself in an attempt to kill Fat Buu. In the end, when Porunga is summoned, Vegeta is not revived by Porunga and continues to stay dead and have a halo. Goku finishes Kid Buu with the Spirit Bomb. Movie 12 happens with Goku meeting Vegeta in the afterlife, fusing to Gogeta and defeating Janemba. (This allows for Vegeta to know the Fusion Dance to be later used in GT.) Movie 13 also occurs with the defeat of Hirudegarn by SSJ3 Goku’s Dragon Punch. Vegeta is absent from Movie 13 since he’s still in Hell. (Goku later uses Dragon Punch in GT.) At the end of the Japanese version of Movie 13, the Z senshi bid farewell to Tapion and state that they will wish to revive the good people that died recently via Shenlon. This causes Vegeta to also be revived as now his deeds after Movie 12, deem him pure of heart. The events of “Yo! Son Goku and His Friends Return!!” occur as normal with the arrival of Abo, Cado, and Tarble. Goku leaves to train with Uub after the 28th Tenkaichi Budokai.
Pilaf, Shu, and Mai’s plans to gather the Dragon Balls resume. Instead of searching for all 7 one by one, Pilaf’s radar detected that there is a set of Dragon Balls already gathered at Kami’s lookout, the Black Star Dragon Balls, created by the Nameless Namekian. Pilaf and his gang sneak into Kami’s lookout, find the Black Star Dragon Balls, and wish for Goku to be a kid again. This starts GT! Omg guys, we actually did it! Movies 1-6, 8-13, Plan to Eradicate the Saiyans, Bardock OVA, and GT can all fit in this timeline.
Many years later after the defeat of the Evil Shenrons, Earth is at peace. Goku and Vegeta continue to train independently. Goku now has an adult body. He gets summoned from this timeline to the Time Nest by Chronoa. Vegeta, Gohan, and Goten also get summoned from this timeline and join the Time Patrol to help Chronoa fix time anomalies.
Timeline 6 (dark blue) – Former main timeline, Zamasu switches with Goku’s body to become Black, kills Gowasu and Goku, and takes the time ring to Timeline 2. Created when Cell travels back in time which causes Trunks to see the photos of his time machine and Cell’s cocoon, prompting him to stay and train.
Timeline 7 (brown) – New Future Trunks Timeline. Created when Trunks and Mai travel from Timeline 1 to before Dabura. Whis from Timeline 1 wakes up Beerus early and warns him of Zamasu. Zamasu is sealed permanently. There is no Black in this timeline. There are two pairs of Trunks and Mai. Dabura is defeated, Shin lives and hence, Beerus lives. Paragus and Broly still live in Planet Banpa but since Freeza is not alive, there is no reason for them to come to Earth.
Expanded DB Verse Theory:
Future Trunks (blue hair) gets bored and visits the main timeline to train with Goku and Vegeta (after the Tournament of Power). He suddenly disappears. Fu has kidnapped him and taken him to the Prison Planet. Goku and Vegeta go back to Timeline 7 and try to rescue him with the help of Mai. Thus, the Prison Planet arc begins.
Questions you’re probably asking:
A: No new paradoxes were created, so no new timelines were. Simply visiting the future and going back did not create any new paradoxes so there were no new timelines. Just by using the time machine alone doesn’t create new timelines. A change has to occur which leads to a paradox.
Q: What about a timeline in which bla bla bla happened?
A: Theoretically, there are an infinite number of parallel and “what if” scenarios, but we are limited by the number of time rings shown. New time rings may have been created in the future, but as of Age 780 in DBS, there are only 7 timelines, 1 of which is erased. Also, Trunks traveling back a second time, did not significantly alter the order of events. With or without him, Cell and the Androids would have been defeated. Timelines can be complicated so even Toei and Akira Toriyama can lose track of them!
Q: So what about Hit’s Time Skip, does that create new timelines?
A: It does not since he does not travel to the past or future nor change it. Jaco said the same thing:
Source: Chapter 14, Page 20
Q: When Whis turned back time to 3 mins to prevent Freeza to destroy the Earth, is there a timeline that exists which Freeza did destroy the Earth?
A: Well, we are in luck because Bulma asked the same question to Whis!
Source: Chapter 14, Page 24
Short answer: No, Whis's redo technique doesn't create a new timeline, it's simply rewinding time.
Q: There were so many changes to history by Mira, Towa, Fu, and Demigra. Why didn't these actions create new timelines?
A: Those Time Rifts were fixed by the Time Patrol. Chronoa has the ability to merge timelines and also remove them. Hence, the number of total timelines did not change. In addition, demons use dark magic to travel through time and change history. This is a method of time travel similar to using the time scrolls rather than an artificial time machine.