I appreciate the question, my friend, but my simple answer is: No. There's too much story value in the Vader/Kenobi dynamic as we've understood it since the end of the OT. It doesn't need, nor should it be allowed, to be re-imagined.
The original Star Wars should never be diminished just to prop up the garbage that was the PT. I usually try to be more diplomatic about this sort of thing, but SW is being watered down to the point where I can't be genuine in doing so anymore.
If it happens, some fans will try to equate it to the recontextualizing of ANH that Lucas did with ESB and ROTJ. Nonsense! Those stories were evolving and moving forward. Plot twist allowances in that sense are totally different. But to go back after 44/45 years to change a key element of the dynamic between two pivotal characters just because it could be "cool," or because it might retrofit something to help make the ****** PT a better fit? **** no!
I'm sick of it, to be honest. I'm sick of LFL/Disney playing fast and loose with "the last of the Jedi will you be." I'm sick of dead characters being brought back because creators of today are too vapid to come up with their own equals. And I'm sick and tired of the inferior PT era requiring the OT to be recontextualized in order for everything to "fit" or work more cohesively. So I'm not going to be playing along anymore. The original OT is what matters to me; the rest is too "take it or leave it" to be worth changing how I perceive the original OT context which inspired me so much as a child. It's not worth it.
I'll watch, and hope to be entertained, but it won't "count" in my personal canon. Frankly, only Andor has any chance of "counting" for me. As long as it doesn't incorporate any of the animated crap, or otherwise try changing OT context. The rest of the "content" is messing too much with characters and context that meant too much to me for too many years.