I started this as a comment in
barkley's journal but it got a bit wordy so...
If I were reading Supernatural the series -- each season being a novel 22 chapters long -- I'm not 100% positive that I'd pick up the next book unless I knew, 100%, no chance of change, that the next book would be the last book. Without an ending, structure just waves in the wind and eventually I wind up shouting, "What's your freakin' point!?" and quit reading.
I think the fact that the CW renewed SPN so early this year took the punch from the end of this, and, in point of fact turned it into the most non-ending, let's do set up for next year ever. (Yeah, we ended the apocalyspe but the apocalyspe wasn't the story -- everyone, even TPTB knows it was only the vector for the story of Sam and Dean.) By showing Sam under the light, we were as much as told that the emotional payoff was coming next season, y'all tune in.
And that's a cheap shot.
Plus, it's not very smart. We didn't get BAM, cry, take a breath, move forward.
We got: "Wha...?"
Instead of leaving the possiblities open, they've told us that next season is going to be either an emotional minefield or really badly written. And neither are huge selling points for me. I'm about at the stage where I'm only willing to pick my way through that minefield and endure the bad writing if I know there's a payoff. If I know the boys can finally lay their weary heads down and rest.
I need to know that at the end of next season, I can prop a pillow against the headboard and smoke that metaphorical cigarette because, if not, I'm not sure it's going to be worth climbing back into the bed for another pounding.