Lucas Black, who was in The Fast & The Furious: Tokyo Drift, is reprising his role in Fast & Furious 7. Black is playing his character names Sean Boswell and according to Deadline, he has signed on for at least the next three movies. Which means we will be seeing him in Fast & Furious 8 and 9. As of right now, there isn't much known about Chris Morgan's script for the next movie other than it will be set in Los Angeles. 

The production, as reveled by the films set photos released by Vin Diesel, is already underway with most of the cast from the previous film returning and new comers Dijmon Honsou, Tony Jaa and Ronda Rousey, who are also signed on. Universal had announced that the movie will be released July 11, 2014, which is just a little more than a year after Fast & Furious 6. 

Source: Deadline