They'll be no more DLC for this turd of a game. EA won't even patch the problem with the first DLC where people can't unlock the DLC achievements if they unlocked achievements in the multiplayer first.
As far as them shutting down servers, you better believe they will. I'd definitely expect an announcement in about a year or so that they'll be shutting down the servers for this game. EA always gives a month notice on games they plan to shut servers down on. So make sure you're always aware of that with this game and other EA games that were released around this timeframe with multi achievements.
I also heard that they might make a third Army Of Two game. Let's hope it's more like the original and not like what this horrible excuse for a game was.