360 Magazine has stated that Sledgehammer Games, developers of Modern Warfare 3, will be teaming up with Infinity Ward again creating a title for next gen consoles.
The site hints that a new vacancy posted involves working on a new Call of Duty title for the next generation. With Treyarch most likely handling the next CoD release, this suggests a late 2014 release date.
So either this new title will be released for Wii U, or we are expecting to see the next generation from Microsoft and Sony by 2014. This could also mean that Call of Duty could be a launch title.