When does Clone High return?

Clone High is an animated sci-fi sitcom created by Phil Lord, Christopher Miller, and Bill Lawrence for MTV. It premiered on November 2, 2002, in Canada, and January 20, 2003, in the United States. The show centers on the clones of five famous historical figures: Abe Lincoln, Joan of Arc, Cleopatra, JFK, and Gandhi. It became embroiled in controversy regarding its depiction of Gandhi soon afterward, which prompted over 100 people in India to mount a hunger strike in response. The last episodes of the first season were seen in 2016 on the rebranded MTV Classic.
The show centers on the clones of five famous historical figures: Abe Lincoln, Joan of Arc, Cleopatra, JFK, and Gandhi. The show is set in a high school in the fictional town of Exclamation, US, that is secretly being run as an elaborate military experiment.