i don't know for sure or anything, but i don't believe this either.
I mean, think about it. There's no way Ubisoft is going to release AC3 for $60 on Xbox/PS3, and than a few weeks later or whatever, release it on Wii U for $50. Not a chance. People will wait and publishers want the higher average MSRP. They'll be $60, and may be the casual ones like JD will be $10 cheaper like they are now.