When I first started in the industry, there were - this is prior to the era of computer graphics and all these digital tools - there were some pretty rigid, technologically imposed limitations about how you shoot things, because if you didn't shoot 'em the right way, you couldn't make the shot work.
A spacecraft cockpit interior is a set where there are a lot of little techy bits, control panels and graphics displays, and other things that are kind of a job to manufacture well.
There's no reason to think Disney is going to stop wanting to make 'Star Wars' movies if there's quality and there's interest. It has unlimited potential. It has a huge number of characters, worlds... It's a massive playground.
It's definitely an issue if the actor has passed away without stating any intention or desire about how his or her likeness should be dealt with. Then it falls to their estate. That's a problem that will start solving itself. Now the technology exists, and actors are aware of this and can make their wishes known.
I've gone through a whole series of careers where something started as a hobby of some kind. Almost everything I've been paid to do was something that was largely self-taught.