According to a questionable report from 4chan it appears that Rayman may be set for DLC in Super Smash Bros for Wii U and 3DS. A video was leaked showing Rayman in the roster. The video seems to be pretty convincing and for those that remember a Nintendo employee from Canada seemed to imply that Rayman would be playable last August. Check out the video below.
Update: The video has been confirmed as a fake.