The major change I'd like to see in the ROTJ script?
Reveal that Vader's "I am your father" line from ESB was an outright lie intended to warp/twist Luke's mind to make him easier for Dark Side conversion:
- Darth Vader and Anakin Skywalker were indeed separate people
- Vader (not Anakin) was Obi-Wan's only pupil
- Vader did in fact kill Anakin Skywalker