Why does Keira knightly and Orlando Bloom don't want to come out in the next movie?

Keira Knightley and Orlando Bloom have expressed reluctance to reprise their roles in the "Pirates of the Caribbean" franchise due to a desire to move on to new projects and explore different creative opportunities. Both actors have indicated that they feel their characters' arcs were satisfactorily concluded in the previous films, and they prefer to focus on fresh roles rather than returning to past successes. Their decisions reflect a common sentiment among actors to evolve in their careers and take on new challenges.