Unfortunately, Jason Momoa’s schedule was too packed, presumably with Aquaman duties, for him to be able to film for Hobbs Shaw. It’s kind of funny to hear The Rock talk about someone else’s schedule being too full considering how impossibly busy he himself always seem to be. Although the two actors couldn’t make it work this time, The Rock is hopeful in his Instagram post that for the next Hobbs movie, they can make this team-up happen.
Article source: https://www.cinemablend.com/news/2466071/the-rock-wants-jason-momoa-to-play-his-brother-in-fast-and-the-furious-franchise