From Herms https://twitter.com/Herms98/status/1027917730563801089
"Broly (VA: Bin Shimada): One of the few Saiyan survivors. A mysterious Saiyan who Goku and Vegeta have never seen before. His motive for coming to Earth is..." His beefy form is once again labeled "Super Saiyan Broly (Full Power) http://www.dbmovie-20th.com/sp/story/
"Vegeta: the proud Saiyan prince" blah blah etc, then at the end it says he feels the post-ToP revived Freeza is a threat. Freeza's bio likewise notes that he's patiently waiting to take his revenge on Goku. http://www.dbmovie-20th.com/sp/character/
Bulma (new VA Aya Hisakawa) is collecting the Dragon Balls without telling Goku and co. Her objective...?! http://www.dbmovie-20th.com/sp/character/
Kikono: a brilliant scientist who has served since King Cold's time. The scouters, armor, spaceship, etc are all his inventions." Pretty sure that contradicts stuff Toriyama has said in the past, but hey, that's business as usual. http://www.dbmovie-20th.com/sp/character/
"Chelye: a member of Freeza's army. She stole a Galactic Patrol spaceship, and once this was discovered she joined Freeza's army to escape her pursuers. She's only heard of Freeza from rumors." http://www.dbmovie-20th.com/sp/character/
"Lemo: an old veteran of the rear guard, he has served since Freeza's father King Cold led the army. Since he's not a combatant, he's only ever glimpsed Freeza at their space station and has never met him face-to-face." http://www.dbmovie-20th.com/sp/character/
Turns out granny from the trailer is named "Beriblu" (ベリブル, an obvious pub in "blueberry"). She sees to Freeza's needs, but isn't afraid to say any damn thing to him. http://www.dbmovie-20th.com/sp/character/
The bios for Piccolo, Beerus, and Whis don't have any new information. Still, Whis' bio does note the old thing about how, being an angel, he must remain neutral and not help out in fights (potentially relevant for the film?) http://www.dbmovie-20th.com/sp/character/
Oh yeah, not really anything too new in Goku's bio. After the ToP, he now knows there are still plenty of strong people out there in the universe(s), and he continues training to reach greater heights. http://www.dbmovie-20th.com/sp/character/