https://www.polygon.com/2018/2/6/16978584/call-of-duty-black-ops-4-treyarch-activision-report

This year, Call of Duty will return to what is perhaps the franchise’s most popular subseries, Black Ops, for a fourth entry, according to a report from Eurogamer.

Citing multiple sources, Eurogamer reports that Activision subsidiary Treyarch is working on Call of Duty: Black Ops 4 for a launch “late in the year.” It would be no surprise for Treyarch to develop this year’s title — it is Treyarch’s turn in the three-year rotation that the Call of Duty franchise runs on, and the studio made the previous Black Ops games. Sledgehammer Games developed last year’s title, Call of Duty: WWII, and Infinity Ward made 2016’s entry in the series, Call of Duty: Infinite Warfare.