Treyarch gets CoD5, back to WWII?

We can't clarify any of this with Activision, but this sourceless post claims Call of Duty 3 developer Treyarch will be developing the fifth game in the blockbusting shooter series, and that the setting will be back in good ol' World War 2.

We'd take this with a pretty large pinch of salt until Activision says otherwise, especially given the Infinity Ward-developed, modern setting CoD4 just sold 7 million units and CoD3 was almost universally twatted for being "a bit rubbish". Believe what you will.