TMDb/Rambo Movie Stallone announces a Rambo prequel, "John Rambo," exploring the character's Vietnam origins. He'll executive produce, not star. April 1, 2026 AceShowbiz - Rambo fans recently received an update from Sylvester Stallone about the franchise's future, though it might not be the return many were expecting. While fellow 1980s action icon Arnold Schwarzenegger has excited audiences with announcements about new projects in the Conan the Barbarian, Predator, and Commando franchises, Sylvester Stallone's news about Rambo takes a different direction.