Via Comic Natalie: Ken Ishikawa’s expansion on the Go Nagai original “Getter Robot Arc” is getting a TV anime adaptation, with a release window for Summer 2021. A special promotional video has been released to accompany the announcement.

“Getter Robo Arc” is the final chapter of the “Getter Robo Saga” by Go Nagai, which was first serialized in 1974. “Getter Robo Arc” serialization began in 2001 in Super Robot Magazine, but due to the sudden death of Ken Ishikawa, it has remained unfinished.