New 'Metrics Layer' announced at Fabric Conference

I am trying to find more details of the new  'Metrics Layer' introduced at the Fabric Conference last week and discussed here:
https://www.microsoft.com/en-us/microsoft-fabric/blog/2024/03/26/announcements-from-the-microsoft-fabric-community-conference/

I sat in on a session and it seemed pretty cool.  You could search for 'metrics'..basically measures and re-use them across PowerBi reports.

I don't see it on any of the road maps mentioned here...am I blind?
https://learn.microsoft.com/en-us/fabric/release-plan/

Are there any more details/timelines published anywhere?