The SAP PowerDesigner Product Group is considering a request (CR 742011) to provide direct support for MongoDB in PowerDesigner.
If this is something you’re really looking forward to to, follow this link to the Knowledge Base article – https://launchpad.support.sap.com/#/notes/1877090 – now click the star in the top-left corner to mark it as a Favourite to be automatically notified when the enhancement is implemented. Marking it as a favourite also acts as a kind of unofficial opinion poll.