When does Kim Possible return?

Kim Possible is an American animated action comedy television series. It was created by Bob Schooley and Mark McCorkle for the Disney Channel. The series premiered on June 7, 2002, and ended on September 7, 2007, after 87 episodes and four seasons. It is the second animated series, after The Proud Family, to air exclusively on Disney Channel, as well as the first ever show on the network to be produced by Walt Disney Television Animation.
Kim Possible takes place in Middleton, USA and focuses on the life and adventures of Kim Possible, an accomplished high school student who fights crime on a regular basis. The majority of Kim's missions involve her traveling to various destinations around the world to rescue citizens from harm and fight a variety of villains, the most frequent of whom are Dr. Drakken, a mad scientist constantly plotting world domination.