So IF, which is 100% unlikely, Obito were to get back both eyes, what would be his increase in power? So I guess he would be able to move in between dimensions at the speed of light if he did, and would be virtually unstoppable as nobody would be able to touch him if they are not in his dimension or have access to it. That imo would be too OP... However, Madara will murder Obito anyways, and I guess Kakashi will get his right eye after he dies, it's only so obvious.