The first Modern Warfare came out in 2007... four years ago. It's a little soon to be decrying the entire genre because the publishing companies are wringing all the money out of a waning trend. Remember when there was an endless flood of World War 2 shooters?

Once someone hits upon the next big thing every GameStop will be bursting at the seams with Panda themed RPGs (or whatever). Whining about how one's beloved genre is stagnant is just, well, whining.