I'm not really sure if the picture is clear but in it you can see a person unconscious. Me (and other people of twitter) have speculated that it is Will Byers as the white shoes seem to be identical to his BTS pictures from a few months ago.... You can also faintly see another person next to him which is probably Joyce.

In the yellow circle, you can see Derek appearing to be 'floating' in the air. His last name is revealed to be Turnbow and the name of the third episode is "The Turnbow Trap". Do you think that Vecna will use Derek as a distraction/use him to threaten the group??

In the blue circle, I don't know if it's just me but it appears as Will Byers is possessed and is in one of Vecna's visions. His body seems still, his hands fall flat and he seems to be looking straight ahead/ slightly up. Maybe he's possesed and maybe was forced by Vecna to make Derek float?? We already have some leaks that Vecna will try and team up with Will this season so it's not unlikely.

I personally also think that the starting clip of the teaser is a scene in which Will comes out in. I think that Joyce is trying to comfort Will by reminding him about how worried she was when he went missing, and that she will love him no matter what. It's kind of a parallel to Jonathan's speech in S4. Will is 99% going to get atleast a coming out scene this season.... (if not the show is going to get even more accusations of queer-baiting)....

MY OPINION ON THE TEASER-

It really built up the stage for S5... especially Noah's screams of "RUN". I've seen people hating on Noah for his acting (and while I don't support his actions as a person) his acting was phenomenal !! I just think that the angle was weird imo.

I think it's kind of clear that 11 is going to be separated from the core 4 for atleast a few episodes this season. Was it just me, or was like the lighting different compared to the first 4 seasons?? I guess it's more dark and melancholy?? Anyways... as a Will Byers stan I was happy with the trailer :))

So... what are your theories and thoughts on the teaser of Season 5?? I would love to hear them in the comments !!