https://www.bleepingcomputer.com/news/microsoft/windows-10-2004-is-coming-released-to-enterprise-for-testing/

The Windows 10 2004 feature update is coming soon with Microsoft releasing the latest version to the enterprise for testing via the Windows Server Update Service (WSUS).

On December 10th, 2019, Microsoft released the Windows 10 Insider Build 19041 to insiders on both the Fast and Slow rings. This version is suspected to be the final release build for Windows 10 2004 (20H1) expected to ship in April.