The thing I'm thinking though is that, with Sept 13th being 54 days away they could start revealing more and more characters. Assuming that Sakurai wants to reveal all before the 13th (even secret characters) and we'd be getting around 50 characters, I wouldn't be surprised if they start revealing veterans every other week (like this weekend at SDCC.) And newcomers, well, depending on how many of them there are left, at least two probably, there would be one in August and another in September. The last newcomer I think they'd show would be the best, which would be Ridley. Alongside Mewtwo? Maybe. I wonder if he's taken that in consideration because the WHOLE Smash community would EXPLODE.
I hope they reveal Mewtwo soon though because I am SOOOOO eager to find out if he's in. I'm pretty sure he's in, we just need official confirmation!