Supernatural: Countdown to "Swan Song"

I finally got caught up on Supernatural on Monday night, and now I'm counting down the hours to tonight's season finale "Swan Song." The two episodes I watched have run together in my mind, but I definitely remember that Pestilence was disgusting and Death was wicked cool. I loved the twist where Death handed over his ring because he thinks Satan is a spoiled child throwing a tantrum and wants to be free of him. These two episodes left so many questions about how the finale may play out. The stage is set for the Winchesters to execute Sam's 'take his body back from Lucifer long enough to jump in the trap' plan, but this is Supernatural, and things never go as planned.

Open Questions:

• Is Crowley working with Lucifer? Seems too much like a re-run of the Ruby situation for it to have the exact same outcome (yes, Ruby was technically working for Lilith, but its still pretty much the same since Lilith was trying to free Lucifer). Is Crowley God? If not, I hope that the Kripkeeper managed to do some backdoor crap to get Jeffrey Dean Morgan as God and they've somehow kept that info from leaking.
• Will Bobby get his soul back? If he does, will he also be stuck in the wheelchair again? I predict we may witness the death of Bobby Singer in this episode, but hopefully they'll bring him back next season.
• What happens to Adam Winchester, since we now know that he's Michael's temporary vessel? I like the kid and would love to see him become a series regular, but I'm guessing he's going to bite it too.
• What happens to Mostly-Human-Castiel? He proved that he had a little Angel Mojo left, but he probably can't function as deus ex machina as he has in the past, unless its to sacrifice himself.
• Will God show up at all? I hope so, otherwise the setup with Dean's amulet (which I'm assuming Sam retrieved from the trash) was for naught. I'm guessing the amulet will show up unexpectedly and reveal who God is (Bobby? Cas? Crowley? Please Please Please Daddy Winchester?).
• We know that the writers have said they will wrap up the Apocalypse storyline this season, but that still leaves many possible endings. Lucifer could be locked back up, but at the expense of one or more dead Winchesters. I've no idea how they'd write it, but its also possible that the Apocalypse is averted somehow without locking up Lucifer. Who knows who could be possessed at the end?  So many possibilities!

9 hours to go!