You forget about the future Ultimate Editions. He plans on spucing up the fights and making the effects on the same level as the prequals. What I would like is if Obi-Wan makes a jump towards Vader. Vader blocks it followed by the line "Your powers are weak old man." This would not only connect with the prequals but would make that line make more sense. I wouldn't mind alot more speed in that fight. The fight in The Empire Strikes Back should be left alone. It makes sense Vader would fight slower since he want to bring Luke in alive and Luke has little training so that could work too.