This article has interesting thoughts on what the future of radio could be. Yes, digital is likely part of the future, one way or another. TV is embracing that future. Radio will have to whether it's OTA or via the internet. What will radio sound like a decade from now, and where will revenue come from?
https://www.radioworld.com/tech-and-gear/digital-radio/what-can-atsc-3-0-teach-radio
https://www.radioworld.com/tech-and-gear/digital-radio/what-can-atsc-3-0-teach-radio