I'm torn, because on the one hand, the logistics of constantly recording new lines for minor stuff is really annoying. Imagine you're playing a live-service game that really needs a certain balance patch, but that balance patch is reliant on a very slight change to a voice line (for instance, reducing the time it takes for a character to perform a special attack. To take an Overwatch example, maybe a certain archer is voicing his ultimate ability too quietly). Having to call someone in just for that is costly and unproductive.

But, we're talking about delivering the source of someone's work and livelihood (as well as all their creative influence, exaggerative tones, and delivery) into an algorithm. The line where it would go beyond convenience into worker-reduction efforts is going to be hard to draw.

I would rather that the voice actor retains the rights to their voice, even if it's put into an AI algorithm. Thus, if the developers want to make a small change to a voice line, they still need to get approval for some AI-generated correction - and the actor would have the right to say "No, that one sounds terrible. I'm only going to agree to re-delivering this one myself." Similarly, actors could approve limited sets of explicitly-defined live AI usage, for instance pronouncing the player's name. Granted, some companies would become annoyed at actors being too inflexible, just like they have disagreements with actors today.

I'm definitely worried about too much signing-over of voice identity. I think it's very easy to cut humans out of the equation that way, which not only damages the health of the industry, but also reduces creative output.