I think I've heard that Microsoft is working on scheduled refreshes of "Import"-mode PBIX files, in Azure workspaces, for Power BI Embedded.
Also, there is this idea, where I added the following comment...
I'd like to expand on this idea, and give it my votes:
1. I would like to be able to use the UI in the Azure Portal to create/edit/delete Workspaces (and give them friendly names), just like I can do with the Workspace Collections that contain them.
2. Then, I would like to use the UI in the Azure Portal to import/delete/manage the PBIX files (Reports) that are consumed by Power BI Embedded.
And then, for bonus...once such scheduled refreshes are supported...I would like to use the UI in the Azure Portal to schedule refreshes of those PBIX files (for "Import"-type PBIX files, of course -- the ones that do not do "Direct Query"), similar to how I can schedule refreshes in the Power BI Service.