Now then, Chikashi Kubota, who animated that amazing beginning of Dragon Ball Super: Super Hero, would be returning for this movie, as well as Naohiro Shintani from Dragon Ball Super: Broly. Norihito Sumitomo would be coming back as the composer for this film too, despite having departed with DBS Broly. This first film is a Saiyan arc retelling. Also note that the terms here are also biased towards the Japanese version, although the FUNimation cast remains intact. The one difference is that Tiffany Vollmer plays Bulma again, Stephanie Nadolny plays kid Goku, while Colleen Clinkenbeard still plays kid Gohan.
It starts off with the Toei Animation, Shueisha, and Bird Studio logo appearing on screen before a black background, and then fades into Cha-La Head-Cha-La. Then the narration starts, as footage from the original Dragon Ball plays. Here is the dialogue...
Son Goku: Hey, it's me, Goku! You might know who I am already. Destroyed the Red Ribbon Army.

Killed Piccolo Daimao.

Beat his reincarnation and became the Number One Under the Heavens!

I even have a son, too!

Life was goin' great...until HE arrived.
Raditz Arrives
Raditz: You are not a human from this planet. You were born on Planet Vegeta. You are a proud Saiyan, the mightiest warrior race in the universe!
Son Goku: Saiyan...?!
Raditz: And I am your brother, RADITZ!
(several cuts to iconic moments from the Saiyan arc, including the fight with Raditz, Goku and Raditz's deaths, Gohan's training, the arrival of Nappa and Vegeta, Yamcha dying to the Saibaiman, Chiaotzu blowing himself up, Tenshinhan's last Kikoho, Piccolo's sacrifice, and Goku and Vegeta fighting, before finally cutting away to their beam struggle)
Piccolo: MAKANKOSAPPO!
Chiaotzu: Goodbye, Tenshinhan...
Nappa: DIE!
Piccolo: This last year I spent with you wasn't bad...don't die.
Son Gohan: MASENKO...HAAAAAAA!!!
Nappa: I'm gonna crush you, Kakarot!
Son Goku: Even a low class like me can surpass an elite if he trains hard enough.
Vegeta: (echoing voice) Even if you spare yourself, the Earth will be blown to pieces!
Son Goku: (simultaneously) KA...ME...HA...ME...
Vegeta: Let you and the Earth together turn to SPACE DUUUUUUUST!!!
Son Goku: HAAAAAAAAAAAAAAA!!!
(the two fire their beams, and when they connect, you get the logo drop of the movie.

In theaters [insert random date here], with the voice cast below.)
Voice Cast: Sean Schemmel, Christopher Sabat, Justin Cook, John Burgmeier, Stephanie Nadolny, Colleen Clinkenbeard, Tiffany Vollmer, Phil Parsons, Sonny Strait, Mike McFarland, Cynthia Cranz
(final cut to Son Goku)
Son Goku: Be sure not to miss it!
EDIT: My apologies for the broken image links. If someone could fix them, please do