I want to agree with Beart but...
SAG et al have already more or less abandoned voice actors. In the very near future it won't matter if actors agree to work for these companies because they won't NEED those actors. They'll have training data or they'll pay randos off the street to generate some training data that they then heavily tweak to sound like Ashley Burch and so forth.
And before people pretend that consumers won't stand for that: Anyone with any knowledge of scene composition or lighting clowns on Netflix et al near constnatly. Guess what the super popular movies that everyone watches are? Because, yeah, there will still be works of art like a Blade Runner or even an Anora (the plot was shite but the cinematography was peak). They'll pale in comparison to people pretending they aren't going to watch Happy Gilmore 2.
And same with VA. People will claim they are opposed and it is horrible and complete trash compared to a human... and they'll still buy the games until having "human" voice acting is the exception and only for "arthouse" games.