I don't really see a problem with this, quite the opposite, it's an important step forward for gaming. It's similar to the transition from FMV to motion capture. You can complain all day long that the actors will be out of the job when games can render them in real time, but for the time being at least, you still need them, it's just that their recorded performance will not be the final result you see in the game. Voice recordings are malleable now and can be changed and edited in ways that weren't possible before. This opens up a lot of possibility that just wouldn't have been affordable before, e.g. similar to how a real time rendered sequence can reflect your current equipment, which a FMV could not, a AI-voice can now reflect your custom character, name, race, health, age, gender and whatever, without having an actor record the same line a million times.

And yeah, maybe the celebrity voice actor might lose a bit of status and become more like the mo-cap stunt man. But for gaming as a whole, I just see nothing but upsides. And it's not just AAA games either, just look at all the small indie games that can't afford voice acting, only for some lines or only English, with AI they can offer all the languages and all the lines, for which it would have been impossible to pay for without AI.

And it's not like the voice actor is out of a job, if you want some AAA level performance, you can't just get that out of AI just yet. AI is great at transforming and editing content, but much less good at generating original content from scratch, especially if it needs to fit a given artistic vision.