This year's Call of Duty game is Call of Duty: Black Ops 4, multiple sources have confirmed to Eurogamer.
Black Ops 4 is in development at Treyarch, the Activision studio behind the three other Black Ops games, and as you'd expect is due for launch late in the year.
The Black Ops storyline so far has covered the Cold War, near future, and a further time period in 2065. In particular, Black Ops 3 had a fully sci-fi focus - something which Black Ops 4 will dial back to better fit the series' recent desire for a more grounded feeling - in response to the negative feedback surrounding 2016's space-set Infinite Warfare.