Unfortunately the guests will be part of the roster, there's nothing we can do about it. On the other hand, we can suggest ideas of guests and how make them fit better in the game.
I wrote a thread on my notepad about an idea of guest charcater and a list of moves that could make him fit well in the game. I don't when I'll post it (or if I'll post it), but since guest characters will eventually be in the game, I'd like to make their presence less annoying by giving them interesting design and gameplay mechanics.
