Honestly, AI just having the ability to speak alone wouldn't cut as several testings will be carried out to ascertain it's accuracy, it might not be very long from now but still Humans wouldn't just give their trust yet.
In my opinion I still think after the revolution of AI in the sport industry, that big names are always going to be safe, as people love their and expertise, the problem I see is there might not be rising stars anymore in announcing if the lower leagues are trusted to AI's. This aspect of AI evolution scares me the most, I feel like the inequality gap will be to wide for me to cover, because their means to do so will also be taken.
Agreed. It will start on the fringes and move in. The big names will have time. Over the first few years, once it starts, we will see it spread.
That will not be no automated announcers one day and no humans the next.