A few days ago a picture from Bungie started to circulate showing the achievement tab for Halo: Reach including 1250 Gamer Points instead of the normal 1000 the game has right now. That pointed towards some upcoming DLC, that would add those extra 250 points, like people suddenly felt like that was a big surprise. Microsoft has now confirmed that there is indeed a DLC pack coming for Halo: Reach, that will add to the online part of the game.
"We plan to extend the online experience of Halo: Reach with a robust lineup of Add-on content for the most popular game on Xbox LIVE today. While we don't have any specifics to share at this time, we look forward to revealing additional details on new Add-on content for Halo: Reach in the near future," Microsoft told Shacknews.