Art is often a compromise of time, materials, and other factors. It's the juggling of those factors that is a significant portion of the "art." Going back and reworking a published piece removes the "art" and turns the piece into a manufactured thing.
I think you may want to rephrase your statement, or do you seriously consider these TAS "space suits"
to be "art"?
(Admitted, it's a pretty two-dimensional concept of an EVA suit but so is the show, apparently)
In this exceptional case, I do think a CGI rework that would give us these TOS EVA suits seen in "The Tholian Web" and "Whom Gods Destroy" could qualify as an improvement.