)first off i just want to say a HUGE thankyou for your work on ANY, i must have watched that cantina scene 5 times. i always felt the original cut, and even the SE was a bit dated in comparison to all the others, but youve rally made it more in sink with the rest.
my suggestion for your empire edition, is to put the music form ROTJ that is played when luke almost dispatches vader ("Final Duel" on the soundtrack) into the scene where luke and vader fight on the gantry (starting when vader jumps out at him in the corridor and ending when luke loses his hand)
i know you may feel the music is more thematic of the emperor, and may seem out of place, but it really seems to add a stronger "father vs son" emphasis to the battle, and ties the fight to ROTJ well. try it anyway.
i also second the idea of you doing the same to yoda that you did the cantina folk with the expressions.
and if you could make the rebel fleet at the end alot bigger, you would have more rebels to kill off in ROTJ.
also, just to get it out of my system, if/when you get round to doing ROTJ, would there be any way of putting Mas Amedda (that blue guy from the prequels) just skulking around with the emperors advisers. it would make a nice link with the old/new. theres a robot chicken sketch with him, an advisor and palpatine in the chancellors office and it looks so right seeing them all together!
another idea for ROTJ would be the force ghosts of qui-gon, mace windu etc at the end. (not strictly canon but would be another nice link)
also, how much are you working with the guys on "star wars reborn" if you are at all?
thanks again for granting me a revived love for star wars, i am yet to show all my friends.
good luck!