More as a curiosity than something I’d actually want to see/hear, I wonder what sort of things could be done to the OT’s dialogue to better mesh with the prequels.
Being something of a prequel apologist, I’ve experimented with changing “Only a master of evil, Darth.” to “Only a master of evil, Vader.” (or even “Only a master of evil, Anakin.” - but I decided that didn’t work since it goes against Obi Wan’s certain point of view) and cutting “A young Jedi named…” from “A young Jedi named Darth Vader, who was a pupil of mine until he turned to evil, helped the Empire hunt down and destroy the Jedi Knights.” in order to remove entirely the implication that Obi Wan trained a man whose literal name was Darth Vader. I haven’t got the clips to hand, however.