Once upon a time, Rayman Origins was in the works for the Wii U, as Ubisoft expected an earlier launch date for the console. Sadly the team had no choice but to scrap development once they discovered that the system wouldn't be released in 2011.
Rayman creator Michel Ancel told Nintendo Power magazine that the team were working on the game for Wii U, but there was uncertainty about when the system would launch.
We did not know exactly when Nintendo would release the system, but we started making Origins for Wii U. [At that point], we thought Wii U would come out a lot earlier. We worked very closely with Nintendo [on Wii U] early on, giving them feedback on the various prototypes.
After discarding Rayman Origins for Wii U, the team went on to develop Rayman Legends exclusively for the system.
Scheduled for release next month, it was revealed earlier this week that the game will be delayed until next year.