Radio has, maybe, 20-25 more years tops before it'll head out to the shed to sit aside the record player, black and white TV, video discs and cassettes and the disc-mans.  No doubt I-phones will be sitting there as well.  Time marches on.  Radio just up and sat down.  No doubt to count the money.  Network TV might not make it, as we know it, to 2030.  Corporations who haven't got as much as an iota of understanding or know-how for the products and services they own will squeeze the lifeblood out of everything they touch.

With what radio offers now?  There'll be no lure in order to attract fresh new listeners.  More and more of the 'existing' older audience want little or nothing to do with radio even now. 

Why?  Radio never really listened to their listeners.  And they pretty much stopped completely about 25 years ago.  [you know-way back when golden gooses were a dime a dozen.  I expect the W.W.F. has them on the endangered species list by now.]