Re-animating (?) TAS is an interesting idea. I don't know if I'd go for an exact photorealistic style, but something could be done I think.
The biggest thing would be to break the static quality of the original animation. Get more movement of characters in there and show the changing perspectives of objects.
Two big things I'd want to see are more credibly scaled shuttlecraft and hangar deck and...
is there anyway we can downsize the stupid 50ft. Spock from "The Infinite Vulcan" as well as fix the depiction of Bem as a colony being?
Okay, that's three things.