Adam Beach (Det. Chester Lake) will not be returning to L&O: SVU for season 10. He and the producers mutually agreed not to renew his contract for a second season.
Diane Neal (ADA Casey Novak) will not be returning for season 10 of Law and Order: SVU. She wouldn't say if she was fired or quit, even though it is rumored that she was fired.
This article talks about a new male coming on the show and how he is going to be Olivia's new BF! The article claims that she has been begging Neal for a boyfriend on the show!! WHOA!!