
Vin Diesel says Riddick 4 is in the works, along with a spin-off TV series...
Vin Diesel's immediate priority is to shoot Fast & Furious 8 for director F. Gary Gray. But after that, he's got the latest chapter in two of his other film franchises to focus on.
We already know that he's gearing up for xXx 3, which may shoot straight after Fast & Furious 8. But the actor and producer has also confirmed that there are more stories in the Riddick saga to be told.
David Twohy, he revealed, plans to pen Riddick 4, but there is also a spin-off TV series on the way. Diesel posted at Instagram that the TV project will go by the name of Merc City, and follow "the Mercs and Bounty Hunters of the Riddick universe".
There's no release date yet for either Riddick 4 or Merc City. But both are very much active projects on Diesel's slate.
Source-Riddick 4 and Riddick TV Series in Development