Of couse ai will fullfill a place. Lots of stuffing textures and such will be the first thing. Voicing characters that otherwise would not second. Generic npc scenes third ( and it could make them better as they could be less repetitive id imagine) . loads of things will happen in the gaming industry.
But also, as these tools become more wide spread they will algo give enormous leverage to small studios. Small studios will be able to deploy these and get closer to multi million dollar production with less money. Thats what i think anyway.