Allegedly, the next CoD is set to be a Call of Duty: Black Ops 4, and it will be released for PC, PS4, Xbox One, and also for the Nintendo Switch. It is supposed to be a realistic Call of Duty, with the release set for 2018. The information comes from a so-called industry insider.
It is not official, rather we are in the realm of rumors and whispering industry insiders. The rumor states: The next Call of Duty is supposed to take place in a modern setting and be realistic. Thus, Activision is neither leaning on futuristic experiments, nor will the next CoD take us back to one of the world wars.
CoD: Black Ops 4 allegedly focuses on realism and contemporary setting
Call of Duty: Black Ops 4 is supposed to be released in 2018 for PC, PS4, Xbox One, and the Nintendo Switch. Additionally, it is expected to offer DLCs, support HD Rumble, and Motion Controls.
This information comes from the “industry insider” Marcus Sellars, who had previously been correct with leaks about Nintendo. However, he is unable or unwilling to substantiate his claims.
Nintendo specialist Sellars feels responsible as a leaker here, as Call of Duty: Black Ops 4 is also set to be released for the Nintendo Switch.
Black Ops studio is indeed slated to develop the next CoD in 2018
The statements gain a bit more credibility due to the fact that the studio Treyarch is indeed slated to develop the next Call of Duty in 2018. The studio is responsible for the Black Ops series. Their job postings indicate that they might be planning a contemporary setting. This is known by the German gaming site GameStar, which reported on the job postings.
Since 2012, three main studios have been alternating to continue the Call of Duty series.

Currently, the information seems quite thin, but since Call of Duty is such a huge topic, even a small stone can cause big waves.
Here, however, a dose of skepticism is certainly appropriate: The bigger a game title is, the more likely such leaks are.