Rumour: Infinity Ward developing Ghost-based Call of Duty 4 prequel

According to a story on thisisxbox.com, Infinity Ward is developing a prequel based on Ghost from Modern Warfare 2.

Activision confirms that Treyarch and Raven are making the new Call of Duty

Call of Duty: Ghosts: The Return of Infinity Ward

According to Hope, Infinity Ward are not leading development nor are they making decisions for the game design for the upcoming cod game. Hopefully this means that sledgehammer will add back dead

Modern Warfare 2' release date, trailer, gameplay, and Warzone updates

Everything We Know About Call Of Duty: Modern Warfare's Campaign - Game Informer

Call of Duty: Modern Warfare – Release date, campaign, multiplayer, cross-platform, rumors - Dexerto

Call Of Duty: Modern Warfare 2 -- Everything We Know So Far - GameSpot

Call of Duty: Modern Warfare 3 - Wikipedia

Call of Duty's Rumored Ghost Campaign Could Start a New Trend

Call of Duty 2016 gameplay and uk release date rumours - Tech Advisor

Rumor: Infinity Ward working on Modern Warfare prequel – Destructoid

Call Of Duty: Modern Warfare 2 Finally Has A Release Date