Xander Cage: Welcome to the Xander Zone.
Yelena: I'm an agent too. I've been undercover for two years.
Xander Cage: Two years? What was your plan? Have them die of old age?
Gibbons: I want you to meet some people and find out whatever you can about them.
Xander Cage: What kind of people?
Gibbons: Dirty. Dangerous. Tattooed. Uncivilized. Your kind of people.
Xander Cage: I live for this shit.
Xander Cage: Look who it is. Frankenstein. Uncuff me so I can beat the shit out of you.
Gibbons: Relax, X, you just graduated at the head of your class.
Xander Cage: I like anything fast enough to do something stupid in.
Answer: Vin Diesel chose to reject the sequel as he was being offered three different franchises, based on XXX, The Fast and the Furious concept and the character of Riddick (from Pitch Black) - he presumably felt that he couldn't commit to them all. In the end, he chose to go with the Riddick films and reject the others. The sequel is called XXX for the simple reason that the character is still present - they've just recast the role.
Tailkinker ★