This is the singularity. The typical definition of the singularity involves "unpredictability," but that is just a symptom. The cause of the singularity is AIs generating new information faster than we can consume or act on it.
Of course in art there is no point in exceeding the rate of human consumption; as others have pointed out here we face a future in which AI continuously generates art tailored to each individual. As a result, this doesn't quite rise to the level of "unpredictability" envisioned by singulatarians.
All fields will eventually face the same reckoning as this author has spelled out for art, and some (such as circuit or AI design) will introduce positive feedback loops that will not only put the relevant engineers out of work, but also cause the field to advance so rapidly that we humans will have no chance of catching up, let alone predicting what the AIs will develop next.