Windows Latest published a story that Microsoft has confirmed in a code commit that a new version of Windows is coming out in June 2021.
Microsoft accidentally leaks Windows 10 21H1 release date
Microsoft will reportedly start proper work on Windows 10 version 21H1 in February when testers in the Release Preview Ring will begin evaluating preview builds (19043 or newer) via enablement package. Windows 10 21H1, for the uninitiated, is a service pack-style update with the focus entirely on quality improvements and bug fixes.
Microsoft accidentally leaks Windows 10 21H1 release date