Destiny was released too early. It should have been held back for a year. Bungie spent year 1 finishing the year 1 dlcs and getting TTK ready. The year 1 dlcs should have been finished before Destiny was released and TTK should have been well into development at this time. That would have left Bungie time in year 1 to finish TTK and do the year 2 dlcs. They released Destiny too early (maybe pressure from Activision) and haven't been able to catch up. This means content has been left behind and we are left with a content drought because we have no dlcs yet in year 2 Hopefully, they have learnt their lesson and that's why D2 is delayed.