Rocksteady, the developer of the soon-to-be-released Batman: Arkham Asylum, might be working on Hitman 5.

This comes from the online CV of actor Mark Sloan. That CV lists "Hitman5 & other male cast - Motion capture" as work he did last year for "Rocksteady Limited".

It's known that a new Hitman game is in the works, although there's been no announcement yet and firm details are non-existent.

Eidos (so therefore now Square Enix) owns a stake in Rocksteady and both of Rocksteady's known games - the aforementioned Arkham Asylum and Urban Chaos: Riot Response - are Eidos-published. The studio working on a key Eidos franchise would not, therefore, come as a massive surprise.

IO Interactive, which has developed previous Hitman titles, is currently working on Mini Ninjas.

^{Via Joystiq}