According to Comic Natalie, Tamaoka Kagari's four-panel manga "Mangirl!" was announced to get a TV anime adaptation. The production studio is Dogakobo
and it will be aired in 2013.
Mangirl! manga official website
It's about a slice of lives of manga magazine editors. Four girls try to publish the No.1 manga magazine but they don't have any experiences as manga editors.
Source: Comic Natalie