Things have been quiet on the Modern Warfare 2 front since we got that extended single-player gameplay. It seems all the big news is being made in leaks, rather than official releases from Infinity Ward.
Just recently, the starting date for the game's beta appeared online. The developer has been uncharacteristicly quiet about Modern Warfare 2's multiplayer so far. We don't know, for instance, if or when it will be properly revealed, and how many pre-launch tests will take place.
As it's often the case in the games industry, the longer players have to wait for official details, the more leaks and rumours will arrive to fill the void. A since-deleted Twitter account posted a number of images purportedly from Modern Warfare 2, and a couple from Call of Duty 2024. The source is reportedly an in-development build of Warzone Mobile.