I'm guessing there's going to be a custody issue with the new baby and Dr. Al. Rollins has issues, which Al and his attorney will use as cannon fodder. She's a gambling addict (financially unstable and possible dangerous people around the baby), her family is a mess (felon sister, addict father, so she has no support and her relatives could be dangerous around the baby), she now has 2 kids with 2 different men (irresponsible slut), and she's a cop who works long and irregular hours (won't be there for the baby, also probably doesn't make a ton as a cop). Whereas Al, the cardiologist, could provide a stable and privileged life for his child. (St. Olivia will, of course, save the day in the end.)
What I'd really love to see, although I know it will never happen, is Olivia getting hard and consistent smackdowns from Jack McCoy and to get some leadership lessons from Lt. Anita VanBuren and/or Cragen. God, I miss Cragen...