Unfortunately for Stallone, others weren't as interested in the idea of a sci-fi Rambo. The project got shelved after fans complained that a supernatural monster hunting plot simply isn't what a Rambo movie should be about. Just to be clear, we're talking about a series that started out as a serious antiwar drama about PTSD (based on a novel, if you can believe it), and wound up being a series of pro-war shooting galleries in which Rambo mows through battalions of soldiers like he's trying to short the widows and orphans stock market. That's the series that fans were worried would lose its way by introducing a slight supernatural element?
Well, they got their wish. Instead, Stallone is letting the franchise bleed out with Rambo V: Last Blood, a western/Taken riff wherein an old Rambo puts on a cowboy hat and has to save someone's daughter from a Mexican cartel. You know, classic Rambo.