The DLC may go back to how the Iron Banner is said to have originated: Defending the City. I think that Saladin is there because the Fallen broke through the wall, so he had to bring the Banner back to its roots to defend the City.

Some people say the community is dead, but it is actually thriving, for the game has (If I remember right) 30 million active players. Recently someone came up to me and said, “You still play Destiny? You must be the only one.” Then I told them about the 30 million players and he was just like, “Oh...”

Exactly