George can make all the changes he wants. Just label it as a separate director’s cut, not the only version that should exist.
George isn’t the director for 66% of the OOT! ;D
Lucas does not seem to care about the term or position of a ‘Director’. In the ROTJ audio commentary he talks about how the trilogy is supposed to mimic the old saturday matinee serials and how the position of the ‘Executive Producer’ was the most important person at this kind of entertainment. He over-justifies his position as a producer basically. But at the same time he devaluates the responsibility & importance of the actual director.