User blog comment:Captain Moch/WARNING! NEW CHALLENGERS APPROACHING! 7-14-14/@comment-5810621-20140714195250/@comment-26124383-20140714204343

I think Lucas miiiiiiight return (not sure why he wouldn't), ROB was pretty unique and we need more heavyweights, and Snake is a goner. Plus, Ivasaur and Squirtle are goners too.

My guesses for the rest of the roster: everyone from Brawl returns, except Ivasaur, Squirtle, Snake, and maybe one more (which would probably be Lucas, Wolf, or ROB). That brings us 9. Not counting G&W who is probably back (unless Sakurai is a massive jerk and doesn't bring back a unique and popular character after literally teasing them in a trailer), we currently have 36, so 36 + 9 = 45. So two possibilities: The roster has 49 characters, with four newcomers left (Shulk, Marshal, Dixie Kong, pretty much any other likely character), or a roster with 51 characters, with Mewtwo and that extra cut character still in. I'm tempted to make a new mock roster with all of this new info, lul.