It appears Call of Duty 2021 will be called 'Vanguard' after all, and will be set in World War 2 as expected.
According to Eurogamer's sources, the game's codename of Vanguard is likely to be the final title.
Call of Duty 2021 Will Be Called Vanguard, Set In WWII - Report
While this could change, it would mean that Sledgehammer Games will have worked on two WWII set games in a row, following on from Call of Duty: WWII in 2017.
Eurogamer's sources have confirmed that Sledgehammer is leading the project, and while the initial reports from ModernWarzone had suggested an alternate timeline where World War 2 continues, Eurogamer suggests this is not the case.
Eurogamer reports that "Vanguard has a traditional WW2 setting", which follows on from 2019's present-day Modern Warfare reboot and Black Ops Cold War's 1980s setting.
As far as Activision has revealed, there will be a new Call of Duty title this year, but the publisher is yet to reveal any fresh information.
For more on Call of Duty 2021 (or Vanguard), be sure to check out everything we know here.
We've also heard that Zombies could get its own standalone game, too.