I could see this, if it becomes commercially viable, potentially being a huge boon to indie game creation, for instance, since hiring a load of voice actors to record the dialogue for an entire game is vastly more expensive than, say, hiring a bunch of different people to record their voices for 5 seconds—or even, if this ever took off, buying a bunch of samples pre-recorded (or networks pre-trained) for the purpose.
We're currently working on using voice AI to create real products over at https://replicastudios.com
Cheaper games vs distressing phone calls in this case.
I'm open to better use cases but for now I haven't heard any.
Like so much else in life, we have to take the bad with the good, but not looking for good in it doesn't mean we're less likely to get the bad.