https://wccftech.com/call-of-duty-wwii-vanguard-2021-title-set-in-1950s/

If things play out anything like they did last year (and it’s rumored they will), Activision won’t be revealing the next Call of Duty for several months to come, but early details about the game may already be coming into focus. As we recently heard from a number of reliable sources, Call of Duty 2021 will be fully developed by Sledgehammer Games and at least partially set during World War II, and now a few more details might have emerged.

According to ModernWarzone, who were the first to report the Sledgehammer news, the working title for this year's game is Call of Duty WWII: Vanguard. ModernWarzone specifies that this is a tentative name that could well change in the future, but I wouldn’t be shocked if it stuck, as the title follows the same pattern as last year's Call of Duty Black Ops: Cold War (CoD + the name of game’s sub-series + an additional subtitle).