Kick-Ass creator Mark Millar has said that the third film would be the final one.
Mark - who wrote the original comic books, which the films are based on, and also serves as executive producer on the movies - has no plans to do any more than three films.
"Kick-Ass 3 is going to be the last one," he told SFX.co.uk.
"I told Universal [Pictures] this and they asked me, 'What does that mean?' I said, 'It means that this is where it all ends'."
Aaron Johnson, Christopher Mintz-Plasse and Chloe Moretz are set to reprise their roles for the sequel, which will be released this summer.
Jim Carrey has joined as Colonel Stars And Stripes, alongside Scrubs star Donald Faison and John Leguizamo.
Mark hinted that there could be a grisly shoot-out in the grand finale, saying: "They said, 'Do they all die at the end?' I said, 'Maybe' - because this is a realistic superhero story.
"And if someone doesn't have a bullet proof vest like Superman and doesn't have Batman's millions then eventually he is going turn around the wrong corner and get his head kicked in or get shot in the face. So Kick-Ass needs to reflect that.
"There has to be something dramatic at the end. He cannot do this for the rest of his life," he added.