The synopsis sounds fun. Left for dead on a sun bleached planet, Riddick quickly finds himself fighting for survival against alien predators more lethal then any human he's encountered [just like Pitch Black]. The only way for Riddick to escape is to activate an emergency beacon, calling in the very mercenaries he was trying to escape. This mercenaries are a “new breed”, more lethal and violent than anyone Riddick has encountered before. [Just like Chronicles of Riddick]
While the storyline seems to be borrowing elements from earlier films in the series, I'm reserving judgement until I see a trailer.