While rumors of a Captain Marvel (or Ms. Marvel) film continue to circulate - the character is expected to appear in Avengers: Age of Ultron first - it looks like something else with a female lead is also in development.
Deadline is saying that Peggy Carter, who appeared in Captain America: The First Avenger as well as her own short, Agent Carter, is getting a TV series:
Marvel is notoriously secretive about their development, and no one would comment, but I hear the company is working on a concept for a potential TV series inspired by Agent Carter, a one shot, which will be featured on the upcoming Blue ray release ofIron Man 3.
The rumored series would air on Disney-owned ABC, where a show based on Alias - renamed AKA Jessica Jones - was once in development. If this happens, and that’s a big if following the cancellation of CW’s Wonder Woman, I imagine S.H.I.E.L.D. elements meant for that series will be incorporated into Agent Carter.