Is GR: Giant Robo coming back?

GR: Giant Robo ended on July 6, 2007, on Sky PerfecTV. The series concluded after its 13 episodes aired from January 19 to July 6, 2007.

Giant Robo was an anime and science-fiction series set at the beginning of the 21st century, during which Earth was overrun by giant robots. The story followed Daisaku Kusama, who discovered the titular giant robot in a ruin in Okinawa. He was compelled by forces beyond his understanding to bond with the ancient weapon and defend his homeland from an impending evil threat.

The episodes each had a runtime of approximately 30 minutes.