When does Speed Racer return?

Mach GoGoGoGo is a Japanese manga series written and illustrated by Tatsuo Yoshida. It was originally serialized in print in Shueisha's 1966 Sh?nen Book. Adapted into anime by Tatsunoko Production, its 52 episodes aired on Fuji Television from April 1967 to March 1968. The anime was later re-broadcast on Tokyo MX from July 1 to September 25, 2008.