Gangster Squad producer Dan Lin has said that Warner Bros will be tackling its major DC Comics adaptations before returning to the lesser-known title.
"[Suicide Squad] has a script from Justin Marks, but that is on a hold right now," he told Collider.
"I think Warner Brothers wants to finish their A-list stories first and then we'll talk about stories like Suicide Squad."
Warner's next comic book movie will be the Zack Snyder-directed Man of Steel, which will arrive in June 2013.
A Justice League film is currently scheduled for release in 2015.
Suicide Squad centres around a government-sponsored group of super-powered convicts who take on dangerous missions in the hope of having their sentences reduced.
Lin is also working on Sherlock Holmes 3, Lego: Piece of Resistance and the upcoming Godzilla remake.