Great to hear some news on this! There's no Nick Chinlund in the credits, so I'm guessing no Toombs in this one? This part:
Quote
The first ship to arrive carries a new breed of merc, more lethal and violent, while the second is captained by a man whose pursuit of Riddick is more personal. With time running out and a storm on the horizon that no one could survive, his hunters won't leave the planet without Riddick's head as their trophy.
Made me think of Toombs, but alas... wonder who the next merc will be.