Wandering... Is it too nuts if ObiWan communicated with Vader at some point?

Vader's return could have deeper reasons than Luke. I think that the feel of being "conned" by the Emperor could be one of them.

Though this could add some "market" sense to Vader (and therefore, the story) , in terms of :

EPIII: "I wanna be inmortal, the Emperor knows how, so Ill be a Sith"

EVI:" Remember that I wanted to be inmortal? Well, ObiWan figured out how, so Ill be a Jedi again. "

However, if we manage to keep that feeling off, I think that Anakin's past striking on Vader could emerge as an intreresting plot-line. We could use meditation chamber footage or standing on brdige footage to make it, I don't know.

Regarding what's been said about Vader being a strong character, my pov is that "strong" in terms of violence cames out when one is weak minded and conflicted. So I think that until the very end, Vader must come more closed to himself, less speaking and more violent.

That's the natural reaction of a beast when he's in fear or pain; they can be quiet for hours not making a sound, but when you touch them, they attack you.

Greetings!