Here's what the site has been hearing:
If my sources are correct…it'll be short. And when I say short, I mean one minute long. It's going to have The Force Theme played on woodwinds, softly, over flashing images of the main leads, each fading to black. There's no dialogue, just reveals of the characters. And then the music swells up into a full orchestral piece - perhaps what John Williams recorded this weekend? - and we hear a female voice, likely Daisy Ridley's, saying "Wake up."
And then the title card appears - Star Wars: The Force Awakens - and we see the Millennium Falcon, firing blasters, coming right at the camera.
If true, then it's definitely a trailer of the teaser variety, but surely just seeing Han, Luke and Leia again, after all these years, will be enough to get Star Wars fans truly excited about the new film.
Star Wars: The Force Awakens opens December 18, 2015.