I wouldn't be surprised if a huge percentage of concept artists are out of jobs or changing specialization these days (Creating a throwaway image for a pitch or imaging document can probably be as easily conveyed through a prompt and the people looking at them are probably often not savvy enough to appreciate the difference).
Where the music industry goes will be interesting, knowledgeable musicians are way too into fiddling/toying to feel any need for AI tools, but since music is pretty much an industry these days fed by promotion, it isn't far fetched that bedroom "AI" artists can leapfrog established ones.. the question is if it'll stick if they can't reach the pinnacles (megahits is part of it, but concerts still seem to matter quite a bit, and an AI won't help you perform even if Milli Vanilli might disagree).