Update 4/17: In another rumor, this time from Call of Duty website CharlieIntel, a tipster is now reporting that Raven Software is working on a battle royale mode for Call of Duty: Black Ops 4. This mode will make up for the lack of single-player content in Black Ops 4 as reported below.
According to a new report Call of Duty: Black Ops 4 won't have a traditional single-player story mode. Sources with knowledge about the project say that instead Black Ops 4 will focus mainly on multiplayer and zombie modes.
The report comes by way of Polygon which spoke with anonymous sources close to the project. If true, this would be the first main Call of Duty game to release without a campaign story mode. In a statement, Activision said, "We don't comment on rumor and speculation. We look forward to revealing Black Ops 4 on May 17."
The sources say that as Black Ops 4's release date approached, development on the single-player campaign couldn't be completed in time. One source close to developer Treyarch said that instead development focused on expanding the game's multiplayer and zombie mode, with an emphasis on co-op modes to potentially take the place for traditional single-player modes.
If true, this will be a risky strategy. Other first-person shooters that didn't ship with single-player modes like the first Titanfall and Star Wars Battlefront were noted as lacking by critics and players for that very reason.
Activision and Treyarch announced Black Ops 4 back in March after basketball player James Harden was seen wearing a Black Ops 4 hat. Treyarch will be in the developer's chair again as per Activision's rotating list of studios working the Call of Duty franchise.
The most recent Call of Duty game was Call of Duty: WW2 which took the series back to its historical roots. The Black Ops series by contrast starts around the Cold War and extends into the future. The tagline for Black Ops 4 is "forget what you know," so I guess we'll have to forget what we know about the Black Ops series so far.
We will learn more about Black Ops 4 during the reveal event on May 17, and presumably at E3 2018. Black Ops 4 is scheduled for release on October 12, 2018 for PS4, Xbox One, and PC. For more, check out our Everything We Know About Black Ops 4 guide for the latest news and info.