Currently, an interesting new (neuro-)evolution is happening in Game AI. With the OpenAI 5 and it's "180 years of training per day". We begin to see the feedback loop of game design being influenced by AI.
Detroit: Become Human is one recent example of how AI is used to manage the enormous complexity in game narrative. And some hotly anticipated titles for the fall including Last of Us 2 and Death Stranding will demonstrate the state-of-the-art.
And I don't think it's just for open world environments. Or a new generation of cloud-enabled VR / AR experiences. AI will also be used to re-design "flaws" in arcade classics. And render them infinitely playable into the future.