There are many shows on different stations which are syndicated through Westwood One plus the Metro News and Traffic Services. I don't think that there is any station exclusively reliant on them here but their shows are scattered across the AM and FM dials locally. You can check their website though they still show Leykis on there but the rest should be fairly accurate.
I don’t see them going away, a lot of broadcast stocks are not doing so well but that is a large reason why Clear Channel chose to go private and got our just in the nick of time. The stock market is a lot of smoke and mirrors and when there is a panic the values drop drastically. Until there are serious reforms this will be the case. If you have any money to play with now would be the time to buy, while it is down, any stock of almost any company (Westwood One included) that has been around for a while.