User blog comment:Gman111/Cod 7 Is Not Coming Out This Year, Cod 5 Is!!!/@comment-1729910-20100218181507

Seeing how the Activision is non-canon (I love World at War.), I don't think they would be protruding out and taking up the numbered titles, which were used by Infinity Ward until Modern Warfare Two. As far was we know, it COULD be Call of Duty Five.