I'd love to think that (though it would make more sense in some ways if it were because Cas is inaccessible so whatever he did snaps back), but I really don't think they'll bring back hell trauma Sam. or alcoholic/suicidal Dean. Those were Gamble's, and they were out when she was out. We might get Carver style crazy-to-rescue-Dean Sam, though, and he's also a good thing.

But they've been downplaying blatant Sam and Dean emotion so hard that I find bringing back stone one utterly unimaginable at this point.

*insert Evol Singer conspiracies here*