That's convenient, right? AI will be more than perfect and also be able to be imperfect if you want it, it'll just do anything you want. Here's a better prediction: Almost no one wants to listen to whatever low effort trash gets pumped into an advanced TTS.
Bold claim. To be frank, I'll believe when I see it (or hear it).
My prediction is that to get to that point you need to hire so many editors that you may as well have just hired the VA outright. We'll get more fronts in the meantime not too dissimilar from the Amazon Checkout debacle.