I did hear that at some point more variation in zombie behavior would be added. (ie more zombies entering "low intelligence"/destroy anything mode.) I am unsure if he meant this will come in A18, A19, etc. But I did notice that the zombies were targeting several weakened spots in his base, and not just the one spot, which is brilliant. Also, he managed to semi-drag some around, which is an improvement (over them being determined to destroy x block), imo.
That's why I keep on telling people that the pathway designs that exploit their AI are possibly about to become obsolete. You couldn't afford to look over your shoulder all the time, looking for a possible demolisher that spawned, and if it did end up on one's path design, that "base" would go kaboom.