I think that's what they want us to think, but I don't know if I see this happening. At least not both of them face to face. Maybe briefly we'll see Vader separately from Obi Wan. But I just have a feeling the majority of his role will be what I said in my last post. It's pretty implied they haven't seen each other in years in New Hope. So yeah, they could lightly retcon that. But I think if Vader knew the whereabouts of Obi Wan this whole time, he'd stop at nothing to hunt him just like every other Jedi. There's lots of possibilities there, so we'll see. No matter, it's bound to be a great little series.