Imagi Update: It has been confirmed that Jun Falkenstein is no longer on the Gatchaman Movie project. According to her blog, she is back with Disney.
Live Action Gatchaman Move News: It has been a long while since we've gotten any news on Japan's planned live action Gatchaman film. Apparently, the concept is still alive: On June 19th, it was announced that Takara-Tomy (who now owns Tatsunoko Productions) has purchased 2.83% of the available stock in Nikkatsu, the studio that created the live action Yatterman movie and who has the rights for the live action Gatchaman movie. In turn, Nikkatsu will produce live action films based on Takara-Tomy products such as the Rika-chan fashion doll line, and adaptations of further Tatsunoko animated properties. The plan is to release one Takara-Tomy-based film a year.
There was no specific news about the live action Gatchaman film in the press releases. But, since the Yatterman live action movie was a major box office success, hopefully, this will stimulate work on the Gatchaman film.