Lol, there's defo a serious case of Prometheus cabin fever on these boards now, we need trailer now dammit!
Roger Roger. Unfortunately I doubt that the first official trailer will be as comprehensive as the leaked one we have seen. We will get a mysterious teaser, which will be exciting, but a bit of a let down as far as providing any new information. It has been mentioned before on this thread, but it's as if the leaked trailer was made especially for fans of Alien (and deliberately leaked IMO). It just seems too much of a nod to the original film, especially after all the "Prometheus isn't Alien" hyperbole.
It will be interesting to see if the official stuff has the same motives (music, titles etc.). I would be surprised if it did, but certainly not disappointed by the fact.
EDIT: Just re-read that the SDCC footage used the same title sequence, so...