Are you thinking more, of LLM based "AI" or "director" logic? Like an LLM tailoring the challenges and randomness the player experiences?

We did have some movement in the director logic before and, I forgot the zombie game in question, some of it seems pretty well served for the most part. I still think there is some room for a proper game master type that you refer to ( adjusting the challenge to what the player seems to be to do ).

I was personally thinking of making NPC less npcy ( not completely unlike dwarf fortress, but expanded ).