Batman: Arkham Knight - Every Screenshot You Need To See

17. At Some Point The Arkham Knight Does Win

Who knows how it happens or for how long, but Batman is bested by the AK at some point in the game.

It could be that it's part of a plan to lure him into something or maybe it's from his first appearance - or it could be the final fight of the whole game; as of yet it's all up in the air.