http://www.pcgamer.com/destiny-2-curse-of-osiris-trailer-teases-new-weapons-and-armor/

The big news out of Bungie came yesterday, with the arrival of both a major blog post and a podcast that took a hard look at the current state of the game, and promised major improvements in the future—beginning on December 5 with the release of the Curse of Osiris expansion. But there's still a little bit left for today, in the form of a DLC trailer previewing some of the new weapons and armor coming to the game—some of which may be familiar to fans of the original. 

Bungie warned that people who want to avoid spoilers should also avoid the video, and I'll repeat that: Not because of what you'll hear, but because of what you'll see. OK? OK.