Derek Kolstad is currently working on a live-action adaptation of the popular Hitman video game saga as well as a film adaptation of the Just Cause video game franchise.
The first game in the Splinter Cell franchise was released in November 2002 for the PlayStation 2, Xbox, GameCube, Microsoft Windows and Mac OS X consoles. The saga subsequently won six more titles. The franchise has a series of novels and an adaptation to a live-action film had also been announced, however, the tape could not be produced in its entirety and its status is on hiatus.
Source: Variety via Siliconera