Generally when you watch a trailer for a movie or something, video footage is included (because its the most important part).
What your doing is like : "Ok, were making a combo video with these people, this song, and it'll be done by this time".
That doesn't make for a trailer.
Imagine watching a movie trailer like that.
Wikipedia said:
Trailers consist of a series of selected shots from the film being advertised. Since the purpose of the trailer is to attract an audience to the film, these excerpts are usually drawn from the most exciting, funny, or otherwise noteworthy parts of the film but in abbreviated form and without producing spoilers.
Not trying to be a jerk or anything.
