"You mean is he Vader," Jaina repeated, a bit unnecessarily but just to make certain they really were speaking about the same thing. She paused briefly, really considering the words, before finally giving a slight nod of her head.
"Yes... and no." Her lips quirked upward a bit in an expression of part grimace, part grim smile. "He isn't still walking the path of the Dark Side, but he was Vader for a very long time. It's difficult for him to forget that, I think."
Another slight pause and Jaina added, "He is trying, though. He and I have spoken a lot and he's asked for... assistance, to do the right thing. I'm not sure how much of it is for him or how much is for my grandmother and uncle, but at least he isn't an active Sith at the moment." And really, given the alternative? Jaina would take whatever she could get at this point.