All these points make perfect sense, but I just don't see how "Luke" can be added back in with McDiarmid's voice and not sound like shit. Because - and no offense at all to Jaitea, you did a great job with what you had - adding "Luke" from the Musical Journey or whatever just sounds so out of place and awful. Unless the "Luke" could be extended slightly and made to sound like the Emperor and not McDiarmid's normal voice, I don't see how it's even a possibility.

Young Skywalker is fine - it's a compromise, yes, but it's what we have to work with, and it's better than the Jedi-inconsistent Clive Revill/monkey-lady Emperor.