For this, I'd see the form as a permanent shift.Dragon Ball Gus wrote:What if Goku used Super Saiyan God through out all of Super and it never disappeared until the Universe Survival Arc?
[spoiler]After the ritual is complete, Goku becomes a being of godly ki and power, forever. Beerus and Goku fight, and fight. Eventually Beerus and Goku reach the point in their fight where Beerus wounds Goku, but the powers of a God regenerate Goku. With this Beerus would be gleeful. "This Super Saiyan God really is amazing. Everytime I knock him down, he revives even more powerful!" Goku becomes elated with this new ability, and the two begin fighting in earnest. Unfortunately, the universe cannot handle to Gods clashing at this might. Whis sees the chaos and quickly stops the two with a deft block, preventing the final clash that would unravel creation. Earth would be saved, as Beerus and Whis leave for now.
Eventually Shin and Old Kai would teleport to Earth, as even with Goku training it is causing waves of godly ki to ripple through the universe. Shin even travels with Goku to Beerus's planet, and asks that Whis train Goku on how to master this new ki. Meanwhile, on Earth, Vegeta is furious. With Kakkarot gone he can't use the ritual to achieve the God form, and no matter how much he trains, he cannot attain it. He has an idea about this God Ki.
Over the next two years, Beerus takes a much more active roll in training with Goku. The two spar constantly within Whis's demension, taking breaks to eat food Whis brings back from trips to Earth. On one of these breaks, Whis takes Beerus and Goku back to Earth, since Bulma has offered even more delicious food. Beerus agrees that calm is important for Goku to master. When the trio arrives on at Capsule Corp, Bulma is shocked to see Goku isn't shining with red energy. His hair remains reddish, as do his eyes, and his frame is still young and thin, but he is obviously close to mastering this form.
Vegeta appears during the meal and states that he has developed a technique to rival Goku's God form. Beerus is amused enough that a mortal would think he could rival someone who has ascended to godhood, and demands that, after he is done eating, Vegeta and Goku must spar.
This is when Freeza makes his rebirth known. Vegeta and Goku recognize this evil energy, and something more. The gang heads off, but Beerus demands that Goku and Vegeta stay behind. He wants to see them duel when he eats desert. The rest of the group heads out to try and fend off Freeza's forces.
The battle does not go well. In this time of peace the fighters of Earth have grown soft. Save for Piccolo and Master Roshi, who reveals that after seeing his pupil become a godly being, he couldn't hold back. Finally, Beerus and Whis ready to eat dessert, but Bulma has an idea. She says that she'll only serve them desert after Freeza is defeated. Beerus is appalled and demands the food, but Bulma sent the dessert with Jaco, and it's by Freeza already.
Goku teleports the four over to the battle and see a terrible sight. Their friends and family lay on the ground all beaten and worn. Freeza seems like the only one standing. Freeza is stunned by Lord Beerus and backs off, but another figure behind him removes his hood. Beerus readies to destroy Freeza so he may eat dessert, but Vegeta raises his hand. "If I may, Lord Beerus, Freeza Destroyed my people and my planet. I would like to demonstrate my new power for you, and get my revenge at the same time." Honestly, this was more a tactic to prevent Beerus from accidentally destroying the planet, but Vegeta wanted to show off a bit.
Bulma gives Beerus the dessert and he, and Whis, eat while they watch Vegeta square off against Freeza. Freeza comments that Goku has withered away, but his time will come too, in fact he met a friend in hell that has a grudge against Goku. A cloaked figure that had been the one to defeat Gohan floats over to his side. Cell reveals himself to the on lookers. Freeza needed a training partner and the only one that woul suffice was a being made of his own cells. Goku squares off against Cell while Freeza takes on Vegeta.
The fight is tremendous, but neither Goku nor Vegeta are going all out. The two are toying with their opponent, Cell especially having a hard time with Goku since he cannot sense the Saiyan God's energy. Both the villains are backed into a corner, Freeza upset that Cell is having such a hard time. They decide now is the time to transform. The two reveal their Golden forms to the shock of even Beerus and Whis. Goku powers up, his fiery red aura still presents no Ki, but Cell can tell he's increased dramatically. Vegeta, the odd man out, smirks and reveals his new form, declaring it "Super Saiyan Beyond God!" His aura instead of expanding, condenses yet burns brighter. The hue changes from gold to a clear blue, and his hair shifts from black to blue.
Goku smiles wide as he is impressed with this power, and admits he'd never think to refine his ki that way. Whis explains to the onlookers that while Vegeta does not have Godly ki he has purified his own Ki to a remarkable point.
The fight goes on, with Vegeta and Goku easily outpacing their opposition. Cell and Freeza are forced to work together, tag teaming and displaying coordinated attacks, which does manage to throw the rivals off their pace. Beerus is disappointed that such a tactic is working. If the two Saiyans could work together, he'd even be worried about their power.
Goku manages to knock Cell into Freeza, and Vegeta slams them both to the ground. "So, you've noticed their weakness, Kakkarot?" Vegeta says as the two float down. Goku only smiles.
Cell and Freeza are furious. They should be invincible, but they power down as their energy is depleted. The forms are too draining. Goku approaches them, "If you two weren't such bad guys, I'd like to see how strong you could get." That's when Freeza's minion fires a laser that pierces Goku's chest.
Whis and Beerus groan, and complain that Goku is too soft for a god. Cell is also furious. Mad that Freeza would use such underhanded tactics and yells at the tyrant, but Goku rises back to his feet. The hole in his chest mended by his godly ki.
Vegeta strides to Goku's side and aims a hand at Freeza and Cell. From his flat palm a small speck of ki shines and floats towards the pair. Right before impact the ball expands and consumes them both. The concentrated ki is so strong it vaporizes both. Goku argues that Cell was his opponent, but can't complain that Vegeta's new power is amazing.
Vegeta drops his form and fights not to pass out. His muscles spasm, as his body reacts to the sustained form. Goku offers him some ki to recover, but Vegeta remarks that this is part of the process of mastering control. Eventually his body will contain purified ki without any struggle. Whis remarks to Beerus, "When that happens, Vegeta may very well be a Super Saiyan Beyond God."
All the fighters are healed and excited, but it is time for Goku, Beerus, Whis to return to their world. Goku still needs to learn control. Whis even offers to bring Vegeta along, to which Beerus argues. Bulma says that means she'll have more delicious food, so she can see Vegeta more. Beerus grumbles that his planet is too crowded now, but accepts the offering of food. With fair Wells said, the four leave to train.[/spoiler]
I can do more, but that's the sense of it. Super Saiyan God becomes Goku's new permanent form. His ki is now Godly Ki at all times. Vegeta develops "Purified Ki" as a way to counter not having Good Ki. This also could lead to Goku focused on Ultra instinct instead of strength. Vegeta would eventually perfect Super Saiyan Beyond God into the "Royal Blue" form. I think this would make the Zamasu arc even more interesting personally.
If you mean instead of Goku during BoG, than I think it would have played out very much the same. Their reasons may be different, but Vegeta would fight hard to protect his new planet. Beerus might even let slip that he ordered the destruction of planet Vegeta, and we could see SSBlue happen as result. Still this just impressed Beerus, not defeat him.Dragon Ball Gus wrote: also, What if Vegeta achieved SSG?