Considering my prescient post from yesterday, I'm still surprised at how fast my speculation was confirmed -- and how! What's being called an Ubisoft E3 trailer for Rayman Legends has leaked, and despite Ubisoft's best efforts to the contrary, it is now available for your viewing. Rayman Legends is real, it takes place in a setting of Greek mythology, and it looks amazing.
While not Wii U exclusive, Rayman Legends will feature a number of Wii U exclusive features. These include a fourth player controlling environmental objects via the Wii U controller, and also a Skylanders-esque system that lets you scan figures into the Rayman world. The trailer makes clear to clearly label these features as "Wii U Exclusive," so the implication is Rayman Legends will remain multiplatform.
There's also some interesting social features shown in the trailer, and the conclusions you can draw from them are positive. The typical four player cooperative play is back, with nothing showing that the number of players will increase. A soccer-style 2v2 minigame was also shown. In addition, there's a racing mode that shows ghosts of what can only be your friends' best times, so you'll race against your friends' runthroughs of the map. The conclusion I referenced earlier has to do with how online-play works on the Wii U. A system that allows games to access online data real-time shows just how far the Wii U has come, perhaps parallel to Xbox Live.
Of course the most important and simple thing to take away is that Rayman Legends looks great. Beautifully animated, fun platforming action, and all the fun stuff you remember from Rayman Origins. Look forward to it.
Update: Ubisoft has released a statement regarding the leaked video confirming the Rayman Origins sequel. The statement is likely more of a legal step to protect themselves from potential false advertising accusations than anything:
"An internal video showing images of Rayman Origins’ sequel has leaked over the Internet. This video was intended as a purely internal demonstrative video, and in NO way represents the final game, the final console or their features. This video was destined for internal production teams who often create game prototypes with work in progress development kits."