If you thought for a second that Vin Diesel was vying for Gorgon, or Triton, or any Inhumans character other than Black Bolt - think again.
Vin Diesel participated in a rapid fire QnA with Esquire where he mentions Black Bolt.
Actually, Vin Diesel mentions Black Bolt four times.
First, Vin Diesel is asked, "Superman or Batman?" with the actor replying, "Marvel."
Then he's asked between the Fox Studios Marvel characters, "Wolverine or Cyclops?"
Vin Diesel responds, "Guardians!" with a cackle noted, and then adds, "OK, Black Bolt. Black Bolt, Black Bolt, Black Bolt."
Would Vin Diesel be a good choice to play the character? Interestingly enough, similar to Groot in the comics, Black Bolt is prety much mum; however, a pocket universe was created for the King of the Inhumans, which did enable him to speak without using his powers.
Inhumans has a July 12, 2019 release, and Vin Diesel is slated to return as the voice of Groot for Guardians of the Galaxy 2.