The 19H2 FALL 2019 will be a more minor release with more fixes & improvements for current WIN10 functions.  Very few new features have materialized, as key goal appears to tune WIN10 for better reliability & performance.  And improved quality is still is excellent benefit of release.  More details can be found in link below. 

https://www.digitaltrends.com/computing/windows-10-19h2-update/

Following the May 2019 Update, the next major release of Windows 10 will be the 19H2 Update. Appropriately code-named for the second half of the year 2019, this update is still in beta testing with Slow Ring Windows Insiders and is set to be released sometime in the fall.

With Windows 10 19H2, Microsoft made significant changes to the way that major updates to Windows are delivered and installed. If your PC is running the May 2019 Update, 19H2 will not be delivered through Windows Update as a full-on “new” operating system as it has before.