When does Nexo Knights return?

Nexo Knights (stylized in all caps) is a 3D animated television series that aired on Cartoon Network and premiered in 2016. It was produced by The Lego Group to coincide with the Lego theme of the same name. The series is based on a fantasy castle concept and is set in a futuristic kingdom called Knighton. The storyline follows the adventures of the five knights as they defend their home from a court jester named Jestro and his monsters.