User blog comment:Hunterinpurgatory/How long will Dean and Cas be stuck?/@comment-4920092-20120525130440

You know, here's a thought. When Castiel let go of all his soulpower at the beginning of S7, did that include the 50,000 souls from Hell? If so, there could be thousands of humans in purgatory for Cas and Dean to protect until Sam figures a way to get them out. I mean, I'm sure some, maybe most, of them have been devoured by the monster souls, but if some are "alive" it could make for an interesting plot.