Though the plot of the next movie hasn't been finalized, expect to see a familiar type of villain. Samuel L. Jackson's technocrat from the first installment wanted to halt global warming -- his idea, using SIM card implants to make large swaths of the human population kill each other, was just insane. Moore's queenpin wants to end drug prohibition -- her idea, poisoning her drug supply and holding the world hostage, is also insane. Kingsman 3 will likely introduce another villain who has a relatable point of view, but a radical solution. "I like raising issues which I think are out there that need to be debated," Vaughn says. "For number three, we've got a whole other concept or issue to bring up, and people will talk about it."
It's unclear who'd return for the third installment, but if The Golden Circle teaches you anything, it's that nobody's off the table. It was never Vaughn's original plan, for example, to revive Colin Firth's character with an amnesia story line. ("As long as he's back, who gives a fuck?" he quips.) But he did because he could. Same goes for any iconic characters you might see die in this movie -- it's a cinematic universe with cyborgs and crazy headshot remedies, after all.