recently we have tried to create a Web map-JSON (Web map specification overview | ArcGIS for Developers) with the undocumented toJSON()-method of the WebMap-class/JS-API 4.10. When calling the method, an error gets thrown saying that the toJSON()-method is not yet implemented. What are the plans concerning toJSON-conversion-methods supporting the web map specification? Will it be included in future releases of the JS-API?
