Okay, since everyone is posting their wishlists for S2 DLC, here's mine. But instead of posting only pictures or names, I will also explain what they could add mechanically to the game, and how that would make them stand out from the rest of the cast.
Pride Troopers pack:
Jiren: He could play similarly to Yamcha or Bardock, with a few projetiles, and mostly close range strikes, and his Power Impact should have be a command grab like super, and could be the version how he stopped Kale's rampage. Beside all of that he could work as an install character, with his full power (the one where he has the UI like aura) working as a lv.3.
Toppo: Just by looking at his moveset, he could play similarly to Android 16 with the grapples, and close range stuff. Except with the difference of that the God of Destruction mode could work as an install. (there are no grappers in this game, with installs) He could also gain a new move, which is a slow Hakai Ball (think M.Bison's projectile in SFV) which would help him setting up the enemy for command grabs and such.
Female warriors pack:
Mai: I'm pretty sure someone will say that she is a weakling compared to the rest of the cast. That's true, but the same could be said about Nappa or Ginyu, or Mr.Satan who is a character that a lot of people asking for. So anyway, she would be more like a projectile heavy character, with using all of her guns, riffles and vehicles. And a fleshbang grenades too, to paralyze the opponent. Her supers could include stuff like using her full army to unleash a bullet hell on the enemy, using a Pilaf robot for a meteor style attack, etc.
Her flying stuff could be handled with simply wearing a backpack which not just stores her weapons, but also works as a jetpack.
Also, adding a bullet counter and some reloading could be an intereting mechanic for her.
Caulifla (with Kale): Kale would work as a support, and would have some cool combination moves from the anime. Kind of similarly to Black and Zamasu. Her level 3 could be the the fusion, and then she would unleash that electric attack, upgradable with another two meters to the christmas beam finisher, like we saw it in the anime.
Geezer pack:
Roshi: If you think about Roshi, most of his unique attacks are about paralyzing the opponent. Like that electric beam stuff, his hypnosis and even the Mafuba. Most of this overall gameplay would be using these attacks to setting up the opponent with these for a heavy beating. Of course he could have the buffed up Kamehameha super, and Mafuba also as a super, which could other then causing damage (to Roshi himself too), could trap the opponent in a bottle, so the opponents team mates could still free him if they are standing. This way it wouldn't be as powerful as Android 16's self destruction.
Android 20: His gimmick would be obviously the energy absorption. There are multiple ways of how he did that in the manga, and they could all work as special moves. He could also catch projectiles and absorb them for a bit of health.
Demon pack:
Dabura: Dabura's attacks were different looking even in the anime. Maybe his fire attacks could cause the enemy to burn, and lose some additional HP in the following seconds. Like F.A.N.G.'s poison attacks in SFV. His spear could obviously be a projectile attack, but maybe his sword could work as short time powerup, where sword attacks could replace his normal punches, adding additional damage and range.
Janemba: Another demon-like character, with a sword... Well, he has teleport, and lots of space-bending stuffs in the movie. I could imagine him working well the most, if the opponent is far away, and mostly playing the game of keeping them out.
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