I really enjoyed that trailer.
Not that the previous trailers didn't titillate me, but I am kind of relieved(?) that we won't be sitting through two hours of "...so, is it aliens?" The subversive vagueness over what the antagonist even is is something Peele already did with his first two films (to great success with "Get Out" and...ehhh, not so great success with "Us"), that I appreciate this being a pretty drastic departure from his previous work, at least in tone.
So, the premise is right out there! Yes, it's aliens; and the main protagonists want to catch them on film. A very retro premise for a Sci-fi/Horror film, much in the way that Peele said he wanted this film to go. I'm really excited now to watch this in theaters and see what the curveball is going to be.