Confirmed! Vin Diesel In Fast and Furious 4

It has been confirmed that Vin Diesel will be returning to "The Fast and the Furious" series of film.  Diesel confirmed the news to MTV news, that he will reprise the role of Dominic Toretto in the fourth installment.
"I think doing the cameo in 'Tokyo Drift' confirmed a lot of things for me. It confirmed that if you create a role that the world kind of identifies with, or the world adopts, sometimes you have that responsibility to revisit that role".

Vin says that he took so long to go back to the franchise because "I'm a little bit slower than the average actor that just jumps into the sequel, but I think the time has come to revisit Dom Toretto." He also said that Paul Walker will be reprising his role as well. "I'm a little bit slower than the average actor that just jumps into the sequel, but I think the time has come to revisit Dom Toretto."