Sam's wall will come tumbling down in the season finale, and Dean will react in his protective older brother way. Ben Edlund tells EW that what he'll be fighting will be something worse than death:
“Yeah, there’ll be more death. I can’t really give a body count or a checklist or anything like that…but some of the things that are the most jarring and the most, let’s say potentially painful, don’t incorporate death. So, plot turns, I think, for us, and emotional switchbacks and things like that, are as impactful in the case of these episodes [coming up] as death might be on another show.”
Will Dean lose Sam again? Who do you think will die? Give your thoughts in the comments!