Pretty much all of those missions shown in the video have already existing areas in the game.
English
-
But the areas themselves are probably still incomplete.
-
They're only missing Enemies
-
Is there somewhere Bungie said this so i can read it?
-
I can't find the post DeeJ made but he talked about how areas were in the game as placeholders or something and that they just had to finish them up before the DLC.