Epic’s Cliff Bleszinski confirmed to Gamasutra that Shadow Complex 2 is “largely designed” and is just “sitting there.”
Bleszinski said Epic and Chair Entertainment, the developer behind Infinity Blade and Shadow Complex, are looking for a partner to help finish the sequel.
The original is still one of my favorite games on Xbox Live Arcade. It’s like the team sat down and decided to craft a love letter to Super Metroid. I hope a potential sequel is not overlooked.
Ryan Markel 
Wow, I had no idea they had already made a sequel for Shadow Complex. The original is still one of my favorite XBLA games, too. Hopefully this gets released sometime soon.