Oh, skyjedi's post made me think of my own answer for this question which I believe is within the parameters!
MORE WISHES!
No wait...
MORE SQUEAKY CHAIR!
No, that's not it either...
Prequel Redos (that I like). That would be better than a proper release of the OOT. Adywan and the like can restore the OOT well enough, but the PT... man that is a mess. If we got a remake, that was awesome... well, then it WOULD BE AWESOME! (by definition)