This screenshot:
http://i.imgur.com/kz9mdiW.png posted by the reddit user: Cynoxious sums up all the DLC's in a nutshell. It's nothing more or less.
Underground: repetitive few levels that are always the same with waves of enemies.
Survival: I've been following this game since 2013. Back then, Massive was posting alot of stuff on Facebook, where a few of the stuff was about, how important it was to use a consumable (water and food) to survive. Survival was actually how the game was supposed to be in the beginning, but ended up being a game mode that came as a paid DLC.
The Last Stand: This DLC is about a PvP game mode and microtransactions. There are alot of rumors going around right now. People say that year 2 content will be for free, but they'll add more microtransactions to the game. I had a good laugh at this picture, because there is so much truth in it, it's kinda sad at the same time. The DLC's we've gotten so far are a joke, except Survival maybe (but in the end, the timer makes Survival less fun, because you end up rushing the whole time). There was nothing that extended the story. There were no new story missions, we've been playing the same content to death for almost a year. Sure, they added like 3 Incursions, but this content ended up being trash too and who in the hell still plays the Incursions?!
I think this game needs story continuation with new story missions. A 8-man raid in one of the many skyscrapers, where you would getter better loot, the more you'd fight your way up. And the LZ needs to be improved alot with random events and activities, unique features like a snowstorm (like in Survival) that hits randomly and effects the games world and maybe an extraction feature like the DZ has with landmarks. Also it needs to have more NPCs roaming around, Hunters or a new faction added and a much needed map extension. But these are just my suggestions, as a day 1 player that's been stuck to the game since day 1. Nobody knows what Massive will actually end up doing, but I don't except much from them anymore. They dissapointed me enough already. And we still don' know yet if there will be year 2 content for The Division or if they'll move on to The Division 2 and leave the game behind.