When it comes to Mario newcomers, I don't think there will be any. I'm thinking Sakurai feels like Mario, Luigi, Peach, and Bowser are enough to complete the franchise. Remember, this game is about Nintendo "all-stars" people. This is why I am assuming that most of the new characters in this game will be from franchises who are not yet represented (Little Mac for ex.), and characters who are new to their franchise, but play an important role in their game (Chrom and Mewtwo; if you count Mewtwo as a newcomer). For some reason, I feel like we are not going to get a huge increase in characters this time around. There were 16 (including ZSS; 19 if you wanna count Pokemon Trainer's Pokemon) Newcomers from Melee to Brawl with 7 characters cut. If we are expecting no cuts, expect 9 or 10 newcomers; we already have 3.