> art as illustration, or stock images (what SD puts in danger)

I'd say the opposite. Seeing how shit SD was at generating placeholder products for a demo, and how it fails at stuff like proportions, depth, etc. the only good applications I've seen so far is abstract/concept art where you suspend disbelief because of the setting.

I think abstract art is lower hanging fruit. "High art" will be impacted as long as someone spins it into a story, it mostly reduces into social circles and selling bullshit to eachother anyway.