Nintendo Exec Names Rayman as Playable Character For Smash Bros
http://www.zeldainformer.com/news/nintendo-exec-names-rayman-as-playable-character-for-smash-bros#.U92Pr2NIrMg
I'd love to see this. Personally, I think having third party characters adds to the appeal of the game, especially if you're a person who is unfamiliar with Nintendo characters. I'm the only Nintendo gamer among my friends, and the only game of Smash Brothers they ever enjoyed was Brawl since it had Sonic and Solid Snake. Everyone else, save for Mario and Luigi, were completely unrecognizable to them.
Regardless of all that however, I think it's too good to be true. I remember the character roster was leaked ages ago by an unknown source who had named Pacman as a new-comer right before the E3 announcement. And since Rayman wasn't part of that leak, I doubt he'll make it on here.
http://www.ssbwiki.com/Gematsu_leaks