I think there is some tenuous analog between today's AI, and yesteryear's music synthesizers and "modern art". Regarding music, I understand synthesizers were created to mimic real instruments, whereas artists used its capabilities not to mimic, but to create entirely new sounds. My limited understanding of modern art (and without a search I don't distinguish between expressionism, impressionism or any other isms because of my ignorance of the differences) is that it was a reaction to the modern world, and an expression of something that could not be anything other than a creation of the human mind. AI may be helping people to copy existing aesthetics, but I'm hoping/waiting for it to enable people to take it in a completely novel direction that can only be augmented human expression.