Providing a satisfying ending to The Fast Saga in having Brian retire from the crew's operations. 

Since then, there have been few references to Brian in The Fast Saga. In order to properly sell the idea that he's simply enjoying a quiet life with his family, even Jordana Brewster had to retire from her role as Mia by not appearing in Fast & Furious 9 became very personal to the Torettos with the return of their estranged brother, Jakob, she eventually had to come out of hiding and the "la familia's" latest mission. While her re-emergence was a welcome development, especially since she finally got to spend time on screen with Letty, questions about Brian understandably came up. It turns out, he's alive and well; he sat out the operations to take care of his and Dom's kids. 

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ending to The Fast Saga without one of its main characters. 

Brian and Dom eat shrimp in The Fast and the Furious

Sadly, however, Walker is no longer around to reprise the role. But, that doesn't mean that this cannot be done. When the actor died in the terrible car crash, production for Furious 7 was still ongoing, so he wasn't able to finish his work in the film. For a while, filming on the project was halted as Universal decided how they were going to move on from the tragedy. They ended up rewriting the character's fate in the narrative, giving him a happy send-off instead. To be able to accomplish this, however, Walker's brothers got involved as doubles. Given this, it's not outside the realm of possibility that they will, once again, gamely Fast & Furious 11 just so Brian can factor in it. 

Looking back, it's best that Fast & Furious 10, but that, too, is fine, as long as he re-emerges for Fast & Furious 11. Granted that he still won't be able to actively Dom's mission given the limits of CGI in recreating Brian. But despite this, just as long as he ultimately reunites with the "la familia" in any way possible would already be a big treat for fans of The Fast Saga. 

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