He has a cameo at the start of the film. It does take place a few months after the events of "The Chronicles of Riddick".
My theory for a while now has been that Urban's character will be one of the people who dumps him off on the planet. He was a bad guy right? I haven't watch Chronicles in ages and don't really remember much of it. I definitely plan on rewatching both it and Pitch Black before I see this one.