Here is my realistic prediction roster
More Predictions
1. I could easily see another zelda rep due to it being such a huge franchise and getting a new rep every game, I just dont know which one.
2. I could easily see toon link and dr. mario returning if sakurai wishes or he will most likely make them costumes.
3. Mewtwo will transform or always be in that new form.
4. F Zero could easily get a character since they have had only captain falcon for several games but this is also hard to determine.
5. Depending on whether sakurai wants to recognize luigi as his own ip I could foresee the inclusion of king boo (popular or not).