Its name is May 2020 Update, but in the PowerShell entries there is also Windows 10 Manganese, a code name that probably describes the upcoming 20H2 feature update.
The May 2020 Update name first appeared in Windows 10 Build 19603 available to Insiders, and is visible in PowerShell. So if all goes well and there are no delays due to the COVID 19 pandemic, the new version will be released sometime in May 2020.
The above brand name is in line with the current Windows 10 naming system, and can only be changed if Microsoft decides to use a more oriented name for marketing purposes.
Another interesting hint in the display of Get-VMHostSupportedVersion results is Windows 10 Manganese, which is used as a reference for the upcoming feature update, also known as 20H2.
According to the name 20H2, the upcoming version is scheduled to be released in the second half of 2020 (if all goes well). Windows 10 Manganese is expected to be a 1909 version, a small update that works more like a service pack.
Microsoft has not yet given us a date for when the internal development of Windows 10 20H2 will begin.
The above information and image was released by the user Tero on Twitter.