When does My Life as a Teenage Robot return?

My Life as a Teenage Robot is an American animated science fiction superhero comedy television series. The series follows the adventures of a robot super-heroine named XJ-9, or Jenny, as she prefers to be called, who attempts to juggle her duties of protecting Earth while trying to live a normal human life as a teenage girl. It was produced by Frederator Studios and Nickelodeon Animation Studio. After airing its first two seasons, the series was cancelled on October 17, 2005.