There's a rumor on Twitter that Misha is being written off SPN and will not be a part of season 7. Hope it's a rumor, but I can kind of see his storyline ending this season.

The rumour is sourced from someone who says they share a doctor with his agent. It's more than spurious at this point.

I've asked Colin, but he has a distinct lack of urgency about getting the answer.

I recall a con attendee relating that Misha mentioned something about his schedule and the start of shooting for Season 7, so if he is being written off it must be a very recent development.

Given that sourcing and Misha's scheduling, I'd have to agree it's more than spurious.

Thanks for clearing that up!

SPN summary for the finale:

"There are two distinct episodes in this two-hour fire-and-brimstone buffet event. For the appetizer, "Let It Bleed," Dean faces his worst nightmare when Lisa and Ben are unexpectedly abducted. In the main course finale, "The Man Who Knew Too Much," the war in Heaven comes to a head. Castiel faces off with Raphael and the walls holding back Sam's memories of Hell crumble. Someone (human? angel? demon?) will die and someone will be transformed. Prepare to gasp, possibly cry and write angry forum entries. Oh, and sorry, John Winchester won't show his face for the finale."

Man, they better not fridge Lisa.

Seems that fridging Lisa would be too obvious a choice. I doubt they'll go there. But I'm guessing Castiel may be the one to kick Sam's wall down as a way to distract Dean and keep them from pursuing the truth. However I wonder if the transformation is Sam's as a result of the wall coming down.

So many ways this could go.

I think Castiel so far is still a little too invested in Winchester goodwill to deliberately hurt Sam like that. Making Sam a vegetable, versus telling Dean the truth? I don't see Cas coming back from making that choice--in Dean's eyes or the audience's. And I'd be surprised if the writers were going to make him that irredeemable, even if they were going to make him a bad guy.

A transformation could be a fallen angel.

A transformation could be a fallen angel.

Ooooh... I hadn't consider that!

But by transforming Sam, I was thinking that Sam may not necessarily become a vegetable. They've been implying that that would be the outcome, but I wonder if that is the only possibility when the wall comes down.

Well, I'm assuming they'll put him back together, but if Cas deliberately did something Death said would result in vegeta-Sam, I can see Dean having a really hard time getting past that, as would I.

Seems that fridging Lisa would be too obvious a choice.

Not to mention it would leave Ben floating about needing a home and a parental figure. I don't think I want to see a season of the Winchester brothers criss-crossing the country with Ben in the backseat.