It would be great to be able to publish the semantic layer to a PowerBI (premium) xmla endpoint.
https://docs.microsoft.com/en-us/power-bi/admin/service-premium-connect-tools
Why should you build this:
Right now it is possible to publish the semantic layer to a SSAS tabular model (either in the cloud or on prem). We often use this as we love the fact that we manage RLS and security, as well as our models fully in Timextender. WE use SSAS in Azure when we want to share with users outside of our own organization.
The new possibility to publish straight to powerbi premium, means that we can save a lot of cost in SSAS Azure. It adds to the value of TX, as the only interface that's necessary to publish data to PowerBi reports.
It also seems to be quite a small change (from my perspective) It looks like you are already using XMLA to push the semantic layer to SSAS on azure so i hope this would be relatively simple, although i am happy to be corrected if that is not the case.
finally: read this excellent blog post on why/how you would want to migrate to Premium here: https://data-marc.com/2020/06/16/migrate-analysis-services-models-to-power-bi-using-tabular-editor/ It features a few more links at the bottom that are also really valuable to read.
