Richter also hinted at the existence of third-party deals, saying that Facebook's "explained the possibility of working with some partner websites that we pre-approve to offer a more personalized experience at the moment you visit the site. In such instances, we would only introduce this feature with a small, select group of partners and we would also offer new controls."
Then the other changes could be better defined as clarifications; Facebook's mostly just trying to make sure users understand how existing mechanisms work.
Still, this is some potentially drastic stuff. It'll be interesting to see how users react as Facebook reveals more details (perhaps at the f8 conference next month).