As I mentioned, softball made its bid this week for a (re)berth in the Olympics. But six other sports did the same: baseball, golf (Annika Sorenstam was part of that presentation), karate, roller sports, rugby, and squash. (Remember, women's boxing may be making its Olympic debut, but in 2012, because it is not considered a new sport because men's boxing already is in.)
ESPN has a brief synopsis of each of the sports that made presentations to the IOC last week.
PS According to Jessica Mendoza's Twitter page, the IOC was "wowed"--their words--by softball's presentation.