Those thrilled by Call of Duty's return to World War 2 last year will have to wait to see another game set in that period, it looks like the next COD game will be Black Ops 4.

This year's COD development is in the hands of Treyarch, the studio behind the previous three Black Ops chapters, so it was always likely it would be working on a fourth in the series. Eurogamer has discovered that to be the case.

Its sources, plus a tweet by industry insider Marcus Sellars, all confirm that Call of Duty: Black Ops 4 will be released in 2018.

That might be received less enthusiastically by those who feel the series veered to far into the realms of science fiction with Black Ops 3. It didn't go quite as far as Infinite War, but still introduced super human powers and biotics.

Eurogamer has been told that the fourth will be more grounded in reality, however, to better fit the general Call of Duty feel.

And even better news is that COD:BO4 is likely to be released on the Nintendo Switch, as well as the usual culprits: PC, PS4 and Xbox One. It is further confirmation that, unlike the Wii U, publishers see the Switch as a valid home gaming format and want to put their biggest titles on the platform.

Call of Duty: Black Ops 4 is likely to be officially unveiled shortly before E3 2018 in June. The game will then be shown for the first time at the enormous convention in LA.