Looks like Halo: Reach will actually officially be Bungie's last game in the series, despite their Rolling Stones approach to it (I swear they were calling it a day three games ago). This has been made all the more real with a shock announcement they would actually start working for Activision, and that said work would actually span 10 years.
"We have some pretty crazy, ambitious, grandiose plans for what we want to do with our next big game universe," Bungie's Brian Jarrard told Gamesindustry.biz
. "Our action universe, and how we want that to play out and the types of stories we want to tell and the types of experiences that we want to share.
"So we're looking at that right now as a very long term proposition from the creative and development side. And this deal was structured to basically span that vision and to help us be able to achieve what we want to do for the next decade."
Obviously this partnership comes hot on the heels of Activision's trouble with Modern Warfare developer, Infinity Ward, but according to reports the Bungie deal was not knee-jerk, and has actually been in the pipeline for some time.