As the Fast & Furious franchise expands its reach into spin-offs, it seems inevitable that the producers will eventually recast Dominic Toretto and his crew with young actors for a prequel, or a series of prequels. The fact that most of the characters’ meetings have already been seen on-screen would seriously hinder a potential prequel. A Fast & Furious prequel couldn’t have young Dom hanging out with young Hobbs, because they didn’t meet until Fast Five (and they were initially enemies). But there are some opportunities to fill in the backstory of a beloved character dynamic from the Fast & Furious movies in a prequel.
https://screenrant.com/fast-furious-recast-actors-prequel-toretto-family/