PowerApps for SharePoint Lists

Have there been any updates on when GCC customers will have the PowerApps for SharePoint lists feature?  We have been waiting over 2 years for this functionality to appear in GCC.

We need to be able to customize lists in SharePoint Online and are still keeping many lists on an on-premise SharePoint 2013 environment so that we can use SharePoint Designer and InfoPath.  We would love to move our SharePoint content fully to 365 but need this functionality.

Also, I'm hoping the recently announced PowerApps for Document Libraries feature won't take years to come to GCC tenants.