I think this was the peak year of Call of Duty, the next game will suffer because of the rebuild of the developer (remember all the infinity ward fiasco) and some people will begging to tire of it, it will not fall to small numbers, but will sale less than previous years, then Activision will release a spin off and all will go downwards from that point on.
In 2012 we will see the new first console (microsofts?, nintendo?) and if there is a new game that can catch the FPS audience, it can be the final stroke to CoD, the games will still sell huge numbers like Madden around 4-5 millions, but not the insane 20 millions that we are seeing this days.







