Not all arms of Ubisoft knew the specifics about Rayman Legends. Ubisoft Netherlands took to their Facebook wall to talk about the leak, and they also revealed a bit of info about themselves.

So yes, the team of Michel Ancel is busy with the production of Rayman Legends. Unfornuately we can't say anything further beyond that. Better yet, we didn't see this imagery till today either.

In other words, the Rayman Legends trailer leaked...and was never-before-seen by some branches at Ubisoft! Thanks to NintenDaan for the heads up!