Infinity Ward has had quite a few internal problems lately. Their first slick move was on March 1, 2010 where they fired Jason West (Infinity Ward president, and CTO) and Vince Zampella (CEO and co-founder of Infinity Ward). What followed that were multiple lawsuits. Lastly and most recently was the departure of Robert Bowling in 2012.
Infinity Ward knows its subscriber base. They will literally buy anything. With that, Infinity Ward looks to release Call of Duty 5, Call of Duty 6, Call of Duty 7, and Call of Duty 8 all next month.
Fans of the series also have exclusive access to purchase seasons passes for each and every title for the low cost of 1500 Microsoft points per game. Each season pass will consist of multiplayer maps from all previous Call of Duty series that you already probably bought.
With these releases, Infinity Ward hopes it will keep their fans busy so they may focus on releasing Call of Duty 9 the month after.