When does Gossip Girl return?

Gossip Girl is an American teen drama television series based on the novel series of the same name written by Cecily von Ziegesar. It was broadcast on The CW network for six seasons from September 19, 2007, to December 17, 2012. Narrated by the unknown, omniscient blogger "Gossip Girl" The success of the series led to many adaptations outside the United States.