There could be a DLC that takes place in Steamboat Colorado. Maybe the wolves in the area got mutated and they're called moonbreathers(Pretty much the appearance of a werewolf). Have some kind of story about them getting into the town and killing everyone except you and a few people. Then you have to try and survive the next couple of days until a boat arrives. And have actual weather.


Also, alot of people like the idea of underwater DLC. Why not have one in Salt Lake City?

http://www.gamesas.com/index.php?/topic/1130187-dlc-suggestions-2/page__st__160