Mike from Mii-gamer writes:
I have been dwelling on this thought for a while. Now that NFC has been officially confirmed to be implemented in Super Smash Bros For Wii U. I went back to check my hypothesis, to confirm or disprove my hypothesis. Guess what? I am on to something.
During the fantastic Super Smash Bros Nintendo Direct - I do believe Mr Sakurai was showcasing the NFC Figurines in the video.