I doubt MS or Sony will release something very similiar to the Rev controller, but I see a fair number of third party companys doing so (like the one posted above). I don't see them haveing the same production values as the Official rev controller though. Haveing said that I forsee both companys includeing some sort of tilt sensor in their controllers at some point in the future, after all I'm sure both MS and Sony have spoken about such a thing before the Rev controller was revealed.
As for the eye toy, I think it has as much in common with the rev controller as it does a dance mat. Infact it probably has more chance of mimmicking a dance mat.