Call of Duty franchise creator Infinity Ward will develop the sixth main game in the series, due for release in 2009, following this year's upcoming release of Call of Duty: World at War by Treyarch. The news was revealed by Infinity Ward parent Activision Blizzard during the company's Analyst Day. Infinity Ward last developed the critically-acclaimed, enormously successful Call of Duty 4: Modern Warfare, released last November. Treyarch released the previous year's entry, Call of Duty 3. No details on the game's title, gameplay, or setting were revealed. Recently, Infinity Ward renegotiated its Activision contract, with the studio saying the deal "laid the groundwork and kick started our future project, as well as the possibility of a unique new IP [intellectual property] by Infinity Ward, that we’ll have complete control over."