Ubisoft revealed that the video was designed to be seen by internal production teams who create game prototypes with work in progress development kits. This explains why the Wii U tablet controller was attached to the machine, as it was revealed earlier today that Wii U development kits are currently using wired controllers. Here’s the full statement from Ubisoft regarding Rayman Legends.
“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. Ubisoft confirms the development of Rayman Legends handled by Michel Ancel and his team in Montpellier.”