If Mewtwo is included, he will probably have a different moveset or be in a different (X/Y) Forme. That is almost certain.
The PMBR is likely to have planned ahead before including him in their next version. And they can't just remove him if SSB4 has normal Mewtwo in it.
You're more likely to correctly predict the exact second of the end of the world than to predict what Sakurai is thinking of.
The Silence Bridge Guru
Hi yes, hello. I've been trying to get the hang of playing on a set of Donkey Konga bongos. I've got the hang of waveshining into double laser 360 half pipe bananarama, but I'm having a hard time smash attacking. How loud should I be clapping?
its wont be mewtwo they already did him in super smash bros melee, every super smash bros so far was different with pokemon character beside Pikachu always been difference, for ssb 1 it was Jigglypuff, for melee it was mewtwo, for brawl it was Lucario, so for SSB 4 they will do more likely pick of the new ones from one of popular ones from Generation VI