I'm aware of the whole "Vader-and-Palpatine-are-playing-dumb-to-overthrow-the-other" explanation (I've discussed the conversation ad nauseum in the past, both on this and other forums). It's just that it seems to create more problems/questions than it answers, and I wondered if just moving the scene to an earlier point in the film would alleviate some of issues.
In the end, I guess the safest thing to do would be to leave it as close to the original 1980 version as possible. Besides, there's nothing to worry about... Ady's never let us down before. I'm sure whatever he decides to do will be for the best.
Edit: And on the topic of Jaitea's audio work... just listened to it on my regular PC and I can now clearly hear the difference between "Luke" and the rest of the dialogue. That said, it's still a good effort -- better than what I turned out when I tried the same thing awhile back, at any rate.