SOME of the areas in the upcoming DLC exist on the disk as far as we know. However they are unpopulated with enemies or lootable chests/material caches. There is nothing to do in these areas. That's part of what Bungie is working on. You clearly haven't played a lot of MMOs or don't know much about game design as a process, if you think this kind of thing doesn't happen often in MMOs. If you have a genuine problem with this, then you don't have to spend the money on the DLC. If you already did, then just ba patient and wait to see what the DLC ends up being and THEN if you don't enjoy it, you have a right to complain. But not much, because you paid for something before knowing exactly what you were getting. Caveat Emptor.