Ubisoft has confirmed that the leaked ‘Rayman Legends’ video featuring the Wii U is real. Though Ubisoft has stated that the game is not anywhere close to a final design and the information given in the video is subject to change.
The video was originally designed as a ‘purely internal demonstrative video, and in NO way represents the final game, the final console or their features,” Ubisoft stated.
This means that the video was designed for companies or people that are working on the title, not the console or for the game itself. All of that aside, you can get a great look at some of the features that they are working with and a view of the game in its current form.