Back when Treyarch conceived of the Nazi Zombies mode for Call of Duty: World at War, they probably never suspected just how big a sensation the mode would become. Zombies have become so inseparable from CoD that they've bled over to Infinity Ward titles as well - but will they infest Warzone as well?
From their conception, Zombie modes have typically been a staple of Treyarch's entries in the series. Activision relies on two developer subsidiaries, Treyarch and Infinity Ward, to develop Call of Duty games, allowing the annual release schedule while keeping pressure off development teams, and providing some semblance of variety from release to release.
In some recent titles, the sheer popularity of Zombies led to them appearing in Infinity Ward titles as well. Modern Warfare, and by extension Warzone, are developed by Infinity Ward. There was a time when this would mean a definitive "no" to the question of Zombies, but the precedent is given.
Why would we be asking this at all, though? Beyond the popularity of Zombies modes begging the question on their own, a particularly intriguing set of easter eggs in the game have sent the community into a wild spiral of speculation, and this is the prevailing fan theory.
Throughout Verdansk lie scattered locked bunkers. These shelters are protected by blast-doors protected by keypads, some of which can be interacted with, but players aren't sure how to open them yet. It is very likely that they will factor into some future content for Warzone, we just don't know what kind.
