This one won't really come as much of a surprise to anyone out there, considering the success and buckets of cash, Call of Duty: World at War has made for Treyarch and Activision. On David Kim's LinkedIn profile (a social netowrking tool for businesses), Treyarch's senior animator stated that he was working on Call of Duty 7.

Kim's profile read (now edited), "I am currently on my second title as a senior animator in the games industry with Activision / Treyarch on Call Of Duty 7."

Of course this will come as no surprise considering that Activision have been alternating the franchise back and forth between Infinity Ward and Treyarch to make sure they get their yearly installment.