That does give me an idea - What if someone re-scored the OT to incorporate PT themes that didn’t exist at the time like […] Battle of the Heroes for the Obi-Wan/Vader duel, etc.? Too crazy?
I’d rather re-score Vader’s creation and Padme’s funeral in ROTS with Ahsoka’s final theme from the season finale of rebels (the last theme heard, with drums), which kinda has a strong “turn of the tide” or “destiny’s cards revealed” vibe; and by that I’d free Qui Gonn’s funeral theme to be reused in the duel between ObiWan and Vader in ANH.
That sort of tragic music fits the re-encounter between former master and apprentice.
EDIT: https://www.youtube.com/watch?v=MTFNwROFWaA (starting at 20). I totally see Vader waking up and the funeral in Naboo with that score. It even changes the feeling of the ending, from tragic to “what now?”, reminds me a lot of Nolan’s The Dark Knight ending.