User blog comment:Paul.rea/Teen Wolf Season 4 Behind the Scenes/@comment-24.34.81.18-20131207201033/@comment-4091815-20131207211258

I don't remember them saying that - it wouldn't make sense for it to be the trailer yet anyway.

Trailers include footage from the episodes - those usually come out two weeks prior to the first episode then one week in advance of each episode during the season.

Promos and Teases are commercials to remind viewers that the season is about to begin and are aired during the month before the first episode debut. Promos and Teases don't usually feature video from episodes.