Game Executive Producer Sion Lenton says that along with DLC's, updates (from gamer feedback) will also be coming to fix up bugs and other issues in the game . Subject to the nature of this game our team is already working on extra stuff to be released as DLC. He also adds that the PC version's "Mission Editor" will be getting new maps as well.
Source: http:// www.incgamers.com/News/19077/operation-flashpoint-dlc-patches-in-a-matter-of-weeks