Star Wars: Clone Wars' Steve Tzirlin will co-produce, with Matthew Graham writing the screenplay.
After collaborating for over two decades with George Lucas, the producer moves to Prague to focus on his own projects.
The producer believes the biggest problem in getting this live-action show off the ground is these stories are not for children.
Producer Rick McCallum revealed Star Wars: Underworld is the early title for this series set between Episode III and Episode IV.
The series will revolve around an underground group of Coruscant mob bosses during the rise of the Empire, but it is too expensive to shoot right now.