When it comes to AI there's a lot of people that are confidently incorrect, particularly on Lemmy.
But as for your original thesis - I'd counter that it's hybrid development and efforts that will be the biggest hits and most enjoyable to play.
At least until we have good enough classifiers for what gameplay is fun, what writing is engaging, what art direction is interesting and appealing, etc.
That said - it would be a very good time to be in the games telemetry business, as they're sitting on gold whether they are aware of it or not.