We haven't gotten any to my knowledge. I'm just saying, IF we get an FE 13 and IF it is a remake of Blazing Blade...
And I dunno, I think Megaman is probably the first choice for Smash Bros. by Capcom...
And the five I think will get cut? Huhh...
Lucario, Toon Link, Ness, Pokemon Trainer (as we know him), and... Huh. Not sure on a fifth. But let me give my reasons.
Lucario, because I believe, him being added to promote Generation 4, that he will be replaced by Zoroark to promote Generation 5. EDIT: It doesn't matter if Zoroark is as popular. The point is the intents and purposes. They're going to promote the new, relevant pokemon games with their generation figurehead, Zoroark.
Toon Link is Toon Link. I'd wager that we might actually see Young Link again, considering OoT3D. Maybe.
Ness was planned to be cut all the way back in Melee, and replaced by Lucas. We got Lucas in Brawl, but kept Ness. IF we keep Ness in SSB4, then he's gonna be around for good. I'd say he's the least likely of the five to get cut.
Pokemon Trainer, in order to swap him out for a newer remake. They might skip Generation 2 and go straight to Generation 3, if the remake comes out early enough in development.