When does Gossip Girl return?

Gossip Girl is an American teen drama television series based on the novels of the same name by Cecily von Ziegesar. It follows a group of students on Manhattan's Upper East Side whose private and social lives are chronicled by an unidentified blogger. The series was broadcast on the CW from September 19, 2007, to December 17, 2012, spanning six seasons and 121 episodes. It won numerous accolades, including 18 Teen Choice Awards.
The series focuses on a group of privileged teenagers who attend a prestigious high school in the Upper East Side of New York City as their private lives are commented upon by an unknown blogger. Gossip Girl chronicles the scandals and intimate details of these characters' lives during high school, college, and after.