From what little has been put out there about CoD WWII Zombies it's sounding like this will do things differently.
They said there is a focus on the horror element of Zombies so all bets are off.
Maybe it will be more of a story or campaign instead of the typical wave survival?
Maybe it will fall one the typical horror survival mechanic of limited resources and ammo?
Maybe Zomibes will expand to use other old horror monsters like werewolves, vampires, robots and who knows what?