A sequel to Disney's 1991 movie is currently in development. It will be called "The Rocketeers" (how original!) and will have a brand new character in the leading role, taking over the mantle from a missing Cliff Secord.
I suppose it's possible that this could turn out to be a decent movie, but I'm not too optimistic.
The project, in the early development stages, is considered a sequel-reboot and, in a modern-day twist, will be headlined by a black female character.
Brigham Taylor, who produced The Jungle Book with Jon Favreau, is producing along with Blake Griffin of the L.A. Clippers and Ryan Kalil of the Carolina Panthers. Griffin and Kalil are partners in a new venture called Mortal Media and approached Taylor with the idea for the reboot.
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The new take keeps the story in a period setting and offers a fresh view on the characters. Set six years after the original Rocketeer and after Secord has vanished while fighting the Nazis, an unlikely new hero emerges: a young African–American female pilot, who takes up the mantle of Rocketeer in an attempt to stop an ambitious and corrupt rocket scientist from stealing jet-pack technology in what could prove to be a turning point in the Cold War.
I suppose it's possible that this could turn out to be a decent movie, but I'm not too optimistic.