Well, the difficulty curve ramps up almost perfectly. Just when you start mastering TK and some of the finer point of the combat system, it will become harder.

By the way, Chrome, tell me when you hit Vorador's Mansion with Raziel. There is apparently a pretty nasty glitch that can occur if you accidentally screw this one thing up. I never ran into it personally, but I've heard a lot of people screaming about it on various message boards.