Nothing will be resolved and we will be left with a cliffhanger to end all TBCs.

Of that I have no doubt! Though it might be a tie with Blair dying in the season (nearly series!) finale. :-)

It will *appear* that Dean dies and/or goes to Hell.

Oooh, a little slight of hand going on you think?

Sam either *will* or will *appear to* regain and prepare to use his powers to save Dean

This is the only thing I have an issue with and that I really hope doesn't happen. I only don't want it to happen because there has been NO sign for so, so long now that Sam still has any powers. If we'd been given little glimpses this season that Sam was starting to come back on line, then I'd think it would be fantastic if he finally bursts out to save Dean. But now? All of a sudden? Too contrived a plot device for me.

this may be in conjunction with Sam preparing to or actually following Dean into Hell

Now that would be wicked cool!

Sam's "turning" will be in response to some sort of dialogue with Lilith.

I definitely see a showdown coming between those two.

My biggest fear? That they will kill Bobby.

Bite your tongue! My god, I swear if they do that I am totally and completely done with this show.