Hello RandyS ,
Thanks for your coment here! Unfortunately, I don't have ETA when this option will be available, but, I would like to suggest to write a suggestion in our feedback blog . However, I would like to ask, if you could try the option of Azure SQL Managed Instance, with this option, you could run cross database queries within same instance, using linked server to connect to other SQL Servers, MI or Azure SQL Databases. You could find some information here Lesson Learned #175: Connecting to Private EndPoint of Azure SQL Database from Managed Instance - Microsoft Tech Community
Related articles:
Lesson Learned #222:Hands-On-Labs: Configure/Troubleshoot Linked Server Azure SQL Managed Instance - Microsoft Tech Community
Lesson Learned #204: Elastic Query and firewall issues - Microsoft Tech Community
Lesson Learned #174: Using Synonyms in Azure SQL Managed Instance for Linked Server tables - Microsoft Tech Community
Lesson Learned #63: It is possible to create Linked Server in Azure SQL Managed Instance? - Microsoft Tech Community