Our understanding is that everything including the Sharepoint Team Site will be deleted whenever the Teams Site is deleted. We would like the option of keeping the Sharepoint Team Site once a Team is no longer needed and the Teams Site is deleted. The Sharepoint Team Site is a record of conversations and events that happened during the project active life and is a permanent storage of the associated files. We need to be able to reference these files in the future.
the title of your uservoice request ist quite ... unmeaningly.