No, it stays extremely repetitive. This is why I really question Remedy's cinematic ambitions. The entire game is pretty much the same few encounters...even the same method of ENCOUNTERING the encounters. You walk forward, the camera pans out to show the dark silhouettes, they attack you in the same exact patterns, you dodge, you do the same thing.
There are a few mix-up encounters in the late game but it is by far the most repetitive game I ever finished. It is fairly long, too.
It's like ASSET REUSE the game facilitated by the fact that everything is dark. Dark Forest Path becomes Dark Mountain Road becomes Dark Open Field. Over and over and over again and ALAN RUNS SO DAMN SLOWLY