I thought he would for sure do that with this movie, but I felt he kept very much to the pacing of the book. The epic battel sequence at the end would have gone on forever in most films but was over in the blink of an eye.
He is such a fanboi, I'm just not sure he is going to make fundamental changes to the tone of the books.
The book is pretty short, so he will need to add action sequences to provide a worthy runtime and movie experience.