I have a few thoughts that I'd like to share/mull over with you:
1. When that article said "Dean is on hiatus from heaven" (or whatever), I took that to mean "Jensen has brought Dean back somehow even though last time we saw him he was definitely dead", not "he got bored so he took off lol". So I'm taking that statement not so literally and waiting to see where they shoehorn fit the prequel in to canon.
2. WHAT. IF. Prequel!Dean is ACTUALLY from an alternate universe. During Season 15. And in his universe this is his way of somehow erasing Sam from existence, therefore killing him as Chuck wanted all of the Sams n Deans to do?! It'd explain how off prequel!Dean is, how not normal their '70s looks, how different John and Mary look, the inconsistencies with their canon vs our canon, where the hell Sam is, AND the monsters (specifically the aliens from another dimension or whatever).
You have a very optimistic outlook on the show, anon! There's an awful lot mentioned here that would has to be resolved and personally, I don't trust Robbie to be that creative. I guess we'll have to wait and see.
