Conventional wisdom says that you put out a launch trailer alongside the release of a videogame. Activision and Bungie don't care for your norms and will do it whenever the hell they feel like it.
That's why, despite being almost three weeks out from the worldwide release of Destiny, a launch trailer's surfaced. Destiny plays by no man's rules; it only plays by moon rules. And moon rules explicitly state that there are no guidelines governing the launch of release trailers, so sayeth Moon Revised Statutes §42-4-106(b). Look it up.
Bungie adds support for moving Destiny items between characters online and in-app
8:00 AM on 02.27.2015
This 2015 D.I.C.E. Summit talk explains the entire history of Call of Duty's zombie mode
10:30 AM on 02.12.2015