From DownSights: “Activision revealed a good while ago that they consider Warzone to be a long-term element of the Call of Duty franchise, despite the standard yearly releases.
With Black Ops – Cold War launching soon, players were eager to learn how the free-to-play battle royale mode will be integrated with the new game. The developers have since spilled the beans and given us a clear rundown of how the two titles will coexist in the new climate of the next generation.”
Source: N4G PC Here's How Warzone Will Work In Call Of Duty: Black Ops – Cold War