According to AnimeNation, Minami Maki's S.A manga (published in the U.S. as Special A by Viz Media) will be adapted into an anime series. 

Maki's 11-volume shojo romance will debut in the U.S. in November with a second volume due in January.  It tells the story of a ferocious competition between two top high school students, a handsome, smooth number one student and his hardworking female challenger, who like so many characters in romantic manga have a relationship that stretches back to childhood.

There is certainly no guarantee that a S.A anime series will get a formal release here in North America, but Viz Media does have its Shojo Beat Home Video imprint that specializes in the release of shojo anime and a vested interest in the success of the Special A manga series.