I think the most likely outcome is that this is somehow integrating an o365 or m365 style subscription into windows, carving out "pro" features into the subscription. Either power-user features, or org management features like Ad-joining and management. Maybe subscription versions of Windows that only work with m365 managed accounts, and don't actually support local accounts.

It could replace professional edition, maybe it will be an alternative product SKU, but that seems like the most Microsoft thing that those config strings could mean.