After playing it at E3, it never coming out wouldn't surprise me as there was simply just too much that could go wrong for the average user.
At times movement wasn't recognised, people got to close to the camera and it stopped and told them to stand back. or worse yet the guy supervising the play had to completely cover the camera to recalibrate it.
Though it was a massive deal at E3 and there has been monstrous amounts of development from studios, so I would say it is coming for sure.
Nintendo = Innovation = Wii







