Meetings / Calls in Workspace Plus should be recordable. There should also be an option to create a transcription of the recording - either as a file or, better, as messages (attributed to the individual speakers) in the chat that are annotated like any other message in the space.
Let's start with Audio and then think about Video too. I think the Whiteboard would be the most interesting.
Also, make the recording accessibel (programmatically) as a media file.