Call of Duty Zombies is a mode first introduced by Treyarch. Since its inception, Activision has seen it’s selling power and I’d imagine that it had some influence on it becoming an annual release.
World War 2 is being produced by Sledgehammer, but they’ll have their own Zombie mode. We don’t know anything about it and still don’t, but I’m sure that’s why Sledgehammer’s studio head Glen Schofield is on Twitter teasing it.
If you take a look at the image below you can see the new zombies will feature a map that resembles something close to a throbbing vagina. That or a brain … who knows?
July 20. Just saying… pic.twitter.com/EVVltl2G4r
— Glen Schofield (@GlenSchofield) July 7, 2017