Very interesting question.

Very rarely has a large societal change reversed rural exodus.

Only example I can think of is the European higher middle ages when the break down of the Pax Romana and of the imperial transportation network forced people to flee into the countryside, and start Feudalism.

AI impact could only improve transportation means and I believe people will be more instead of less in need of social proximity.

History has shown us, and in opposition of what « survivalists » think, non extinction level crisis very often hit cities less…