Treyarch's next foray into the Call Of Duty franchise - widely rumoured to be set in Vietnam - is due for release in November, ahead of the "gifting season" according to CVG

Their source - a "senior UK trade rep" - said Activision had told them to expect the game in the same window as Modern Warfare 2.
[quote]
“Activision believes that it can own Christmas again, just as it has in the last two years.

“Development is on course – and Treyarch have been told the game must be ready to hit shelves before the gifting season,” the site’s source said.</blockquote>

The game's said to focus much more on plot this time around. Meanwhile, it's rumoured Infinity Ward are set to move on from the Call Of Duty franchise and create a new IP, which would leave Activision's rising dev team, Sledgehammer, in charge of Call Of Duty during Treyarch's year off.