Bungie recently reiterated plans to not support Halo: ODST with post-launch downloadable content. Speaking to Eurogamer at PAX 2009, Bungie community head honcho Brian Jarrard confirmed that the studio might not create DLC for the not-so-budget-priced Halo 3 expansion. He pegged Bungie’s next title as the reason for the lack of future ODST content

"The number one question these days is whether we're going to do DLC for ODST and add more Firefight maps,” said Jarrard. “Right now we honestly have no plans to do that because we have another huge game in the works.”

This shouldn’t be a surprise, especially considering that ODST is an expansion containing several other bits and pieces of expansionary content. But notice that Jarrard didn’t count it out. There’s at least a chance that more Firefight stuff -- which is a mode that will be undoubtedly hot with fans -- could come. Believe.