That was the theory for those random extra visual changes they did for the blu-ray. "Oh, I bet they did that for the 3D version." It didn't make sense to me at the time, because I was like "why would they be adding the changes now (in 2011) when they're not hitting theaters until 2015-2017???" Obviousy, this Disney news changes things a bit, but that doesn't explain why they would've added the changes last year when they weren't (at the time) gonna hit theaters until years later.

Plus, ya never know. George might've just wanted to make those extra changes for the hell of it, just for the sake of changing things because "it's the big blu-ray debut." He took the same opportunity with the dvd in '04. The "Noooooo" certainly didn't have anything to do with 3D.