The Wii U's NFC (Near Field Communication) functionality was first seen working in a leaked trailer for Rayman Legends, but the game itself may release next year without any NFC functionality.
Creative director and Rayman creator Michel Ancel has said the footage shown was just a prototype and the feature has never been officially announced.
"We didn't announce this officially and it was more the kind of experiment we do when working on new hardware like the Wii U," said Ancel in an interview with the Official Nintendo Magazine.
"We had prototypes of this and we believe that having real objects manipulating gameplay could be quite innovative. But again, this was a prototype and we won't discuss it until it's ready to demonstrate its full potential," he said, stopping short of confirming the feature for the early 2013 sequel.
The leaked video in question showed toys being placed onto the Wii U controller in the style of Activision's Skylanders, which then transport new characters into the game.
You can read the full interview with Michel Ancel in issue 89 of Official Nintendo Magazine.