The Argument for Recasting Deadly Actors

I think with Darth Vader in particular you could make a strong case for that because there are other voice actors who do officially voice act that character and do a great job. People have been recasting the same role with different actors for decades. But in some cases is it possible that a role that's been established by a by a living actor could not be just masterfully redone by a clunky machine? I don't know the next James Bond maybe. This is the only film genre I'm interested in from now on. High tension espionage movies starring the euphonia. Yeah.