I think that if we do get anime character, someone from Jojo will be the first, and then we'll get maybe Mob psycho and someone from RWBY because that's the big anime that Warner bros Japan own. Maybe having Jojo in the game will open the door to more Shonen Jump character like Saitama, Goku and Naruto, but I don't think they'll go for anime that are really more niche than that unless the game has support for a very long time. The other problem with anime characters is that negociating with a Japanese company might be pretty hard since the game is made by English people.