I have a theory about how Cole might fit in. SPN loves to do parallels with it's side characters to mirror the main story. I think Cole could be the brother of a person who Dean killed who had become a demon. Cole won't know what his sister/brother had become and we will get the dilema, was it right to kill the vessel to stop the demon before it killed? Then the same story plays out for Sam re Dean. Either that or Cole will be a mirror to Dean himself but i'm not sure how. Thoughts?
OMG THAT IS FANTASTIC THINKING AND INCREDIBLY PLAUSIBLE I NOW WANT THIS LIKE BURNING!! :D
Yes. Cole will just think Dean is the murderer of his sibling, hence the tracking him down, and it will, as you say, raise the issue of how with anyone else Sam would just kill the demon along with the vessel, but is making an exception because it’s his brother - which will in general be a wonderful highlight of how casual the boys have become about killing vessels along with their possessors.
There could also be hilarious discussion with Cole about how actually Dean is a good person… well, he’s not acting like one NOW, right now he’s acting like the murderer Cole will have thought of him all his life, but USUALLY he’s a good guy, and idk, I just think that’ll be fun, because, you know, how is Cole supposed to believe that? Demon!Dean will fit perfectly with the image of real!Dean from his childhood!
This is wonderful. Yes. I’m rolling with this until we hear otherwise!
(sucker for a good parallel :p)