The creator-owned comic will be produced by the Superior and Ultimate Avengers vs. New Ultimates collaborators. It was announced during the Millarworld panel at Millar's debut convention Kapow! in London.
Supercrooks tells the story of a group of criminals who move to Tenerife in the hope of finding an easier environment in which to perpetrate their crimes. Millar described it as "Ocean's Eleven meets the X-Men".
A Spanish director is also attached to film a Supercrooks film. "We will probably be making the comic book at the same time as the movie," said Millar.
The writer also shrugged off criticisms of movie tie-ins, saying that it was all part of the business.
The unfinished Superior miniseries is already in the process of being adapted into a film.
Millar also announced a Hit Girl comic spinning out of his Kick-Ass titles.