In July 2009, South African director Neill Blomkamp went from relative unknown to sci-fi’s rising star. That was the month District 9 hit theaters, raising moviegoers’ hopes for more genre movies that tackled big questions. But although Blomkamp has worked steadily since those days, he has never returned to the world that made him famous.

However, Blomkamp has not given up hope. While chatting with the site Dexerto about his new battle royale game Off the Grid, Blomkamp gave an update on his planned District 9 sequel: “I am still working on it.”

This certainly isn’t the first time that the director has shared hopes for a sequel to his best movie. Even before District 9 came out, Blomkamp promised SyFy, “If this film is successful, if audiences want another, whatever, District 10, I would love to do it.” As recently as last year, Blomkamp dropped more information, telling IGN,...