My lowly opinion is it will either be some if not all of the following - Exotic weapon Reveals - Ship reveals - My personal opinion - It will have something to do with the queen and re-accessing a weekly event through her throne room in the reef. Bungie already eluded to the fact that the reef has room for "expansion". - Everyone gets HoW fo Freeeeeeeeeeeeee! and everyone that bought it already will get money back Muwahahahah