They're literally stringing players along because they ran out of ideas and need to buy themselves some time. They'll release a few exotics around December, a few in March, and then a few around June. Just in time for the E3 reveal of Destiny 2, oh and don't forget that the exotics you just got in June (like the HoW ones) will become useless. But hey pre-order your copy today to get 200 free silver and a shader/emblem, only $59.99 or you can buy the Destiny Legends edition for 159.99 and get all Y1, TTK, and Y2 content.