It looks as though Agent Peggy Carter may be getting a TV spin off of some sort, as actress Hayley Atwell, who played the role of Agent Carter in Captain America: The First Avenger has signed on to reprise the aforementioned role for some reason or another. Rumors suggest that it is for a live-action TV series. There is an apparent 2014 launch date for the series premiere.
As for Guardian of the Galaxy, rumors suggest that Marvel may be looking to begin production on an animated series for the heroic group. Sources from comicbookmovie.com claim that Marvel were indecisive over beginning work on a new Spider-Man animated series or the aforementioned Guardians cartoon, which would be a first for the long running comic, but decided on going with the latter due to the upcoming film.