I found a blog by James Cridland which includes some new information and some informed speculation.
https://james.cridland.net/blog/

A couple of articles in particular:
BBC audio for international users
BBC domestic radio will stay available internationally after all

There are links in those articles which land differently for UK and Rest-of-World browers, in particular https://www.bbc.com/audio. That redirects to https://www.bbc.co.uk/sounds for me. If you're outside the UK what does it offer?

There are also articles on BBC Feedback and BBC Local Radio. If youre interested in all this I suggest you subscribe to the RSS feed, as I have just done.