I assume stage theory will be right, so we're getting a new Arnold character and a new Loud house rep. I add Arnold himself and Luan Loud, but I could see Luna taking her place. For the veterans, I assumed there would be at least 1 cut because if there wasn't, the interview would have made it clear has a big marketing point instead of being vague and avoiding the question. So I cut Toph because with the moveset revamp, I think that Aang could possibly have some of her moves. I add Zuko to replace her, who is more popular than her in the first palce.
You can see that ManRay is in a weird spot in my roster. This is because at first I had Vlad here, but at the same time I was making my roster, I saw the new posts here with PapaGeno saying that there's apparently a new SpongeBob rep. With him saying that he didn't saw Plankton or Krabs, I figured it has to be something weird. I choose ManRay because I think he's the type of character the team would love to work with, and he's also a popular internet meme because of the wallet scene with Patrick.
Aside from that I add Odie and Jon as the franchise who would get 2 rep, one of them being a weird choice. I think Jon make sense and Garfield having 3 characters also make sense, but I think Jon would be considered weird to many. Finally I add El Tigre as the only new franchise. I think the other new franchises will be keep for the dlc (so my early dlc predictions would be Otis, Timmy Turner, Angry beavers and Rocket power rep.)
Edit: In the end I assumed Vlad is not playable, because if he was I think PapaGeno would have said it clearly. He's probably just a boss.