Maybe a couple of lines of dialogue here and there, but not really. There were no extra "scenes" that I could discern, at any rate. Others, please feel free to correct me on this if I'm wrong.
More than a few extra lines of dialogue - for example, the novelization "explained" that Harrison really beamed up to a ship in orbit with the portable device, then went to Qo'noS. I noticed a number of other expansions as well, that seemed to be "made for the page" rather than cut material.
But yes, I don't remember there being any extra scenes.
There might not be any extra scenes, but this book does let every scene in the film breathe more. Each conversation has much more too it and therefore provides the reader with a richer and fuller story understanding than what you get in the very fast paced movie. I love the film, but Foster's work here shows us that there are times when a little more conversation in key plot-point scenes adds to the movie immensely. JJ could learn to let the characters have more time to talk and scenes breathe so the plot makes sense more easily. Star Trek works best when characters have time to interact with each other and talk.