Ability to preview media/metadata changes before making them

Issue #8125 open
Chris Oliver created an issue

Is there any current way (or any future feature planned) to allow us to preview the new assets/metadata that would be added, before it's actually added?  I'm talking specifically about the "Download metadata/assets" wizard.  I always set it to not overwrite what I already have -- but it would still be very useful to be able to preview the new content that has been found (which would then allow us to choose if we want that content or not).  Let me know!  Chris