Remember that leaked Rayman Legends trailer which appeared to indicate that the game would boast some kind of NFC connectivity with action figures? It turned out to be a case of Ubisoft "thinking out loud" rather than an indication of what the final game will contain, with the publisher admitting it was meant for internal use only, "and in NO way represents the final game, the final console or their features."
Speaking with IGN, Ubisoft's managing director Xavier Poix spoke briefly about the footage shown:
We’ve always tried to create the best experience we could in every generation of Rayman. It’s a game and a franchise that can appeal to you, as an older gamer, or an even older audience, but also appeal to smaller children. When Wii U announced the NFC reader, we thought about that. I can’t disclose any more on this, but what has leaked is something we were thinking about.
Just in case you've forgotten or missed it the first time around, here's the leaked trailer, complete with NFC-related goodness: