User blog comment:Damac1214/Extinction Mode Reveal Trailer Released/@comment-5290320-20131028224001/@comment-5781149-20131030013153

There are several different periods in history in which COD games could be placed in, WWI, Korean War, Desert Storm, Iraqi Freedom, Somalia. I don't think the series will die for a while as long as there is some time period suitable for a COD game.