https://www.digitalspy.com/tv/ustv/a34581788/supernatural-finale-trailer-winchester-brothers-final-moments/
Contains Spoilers!
Doesn't really give much away, except there looks a number of tense scenes.
Thoughts! ...
I know after watching tonight's episode I used up a box of Kleenex. So I'm going to get stocked up if tonight is an example of what's left to come. I'm not going to give away what happened but be prepared. The teaser you posted wasn't really helpful to make any guesses.
shareI gathered it would be tough to watch. I think I know Cas has gone, that's about it. Will watch tonight or tomorrow depending. I am very nervous of what is to come! I didn't think the trailer gave much away either but not much is out there to go on.