Yeah, they're still working on the next film, partly because TCoR bombed so bad moneywise and partly, I hope, to be sure they get things right (tired of them retconning so much). I've heard a leaked version of the general plot for the rest of the story, and I hope they don't go with it because... bleh. I can more easily believe Riddick doing something more like a Conan move, giving up ruling for going back to adventuring, or in this case, the life of an escaped criminal.

But I guess we'll see, whenever the film is finally done.