I’m actually really worried about the hints of a pre-ANH Vader vs Obi Wan rematch. Many people seem to have conveniently forgotten the line “when I left you, I was but the learner; now I am the master”. A duel between them would be the definition of breaking the canon for fan service.
If Obi-Wan duels Vader in a force vision like Luke’s, as part of some kind of trial for him, it would add to and enhance the duel on the Death Star. If it really is a proper encounter, it will make that original duel less significant. Either way you get a fight between Darth Vader and Obi-Wan Kenobi, but with very different effects.
I trust Deborah Chow, but there’s so much unknown about what this show will do. Every time I think about this, it eats at me more. Help!