Given the increasing use of Microsoft Office 365 in remote work and SharePoint for sharing data, it would be very nice if ArcGIS Server got the ability to register a SharePoint site as a data source, at least as read-only.
This would enable us to have a single copy of our geodata in "the cloud" that could be used by both ArcGIS Server and desktop users could create links to in OneDrive.
I recently attended a training by the EPA geospatial users group in which they announced they are moving to OneDrive to store their geodata, and many New Mexico state agencies have moved to Office 365 since the start of pandemic driven remote work as well.