I think he's done. He still has good size and a good mind for the game but he's really lost his mobility. When he came back last season he was seriously limited in what he can do. The passing, the vision, the shot, it was all there but he was often a liability because he just couldn't move like he used to.
Maybe all this time off is the best thing that could happen to him and he really recovers but I'm sceptical and now that the Oilers are starting to add dynamic offensive defenseman Justin Schultz I don't see where Whitney fits in. He will still get second unit power play time and that second unit could feature Yakupov, Gagner, Hemsky and Smyth so it could still be fantastic but he's not going to be a top unit guy so it'll be tough for him to produce like one.