Despite all the talk regarding AM's imminent demise, very few AM licensees will surrender a cash cow.
I think it's safe to say that - pending a favorable decision on their recent application from the fcc - all of CBS's AM stations are off the market.
Multicultural Broadcasting (MCRB) has several such cash cows, however, due to their financial issues, may
be open to a sale of one of their stations. In that case, WNSW Newark (1430AM) which moved to the Clifton, NJ. site a few years ago might be under consideration. However, if MCRB maintains a package deal is required to effect a sale, I think that would rule out that possibility.
Emmis has recently been very open to liquidate their assets, so WLIB New York is another possibility. However, I wonder if there could be any backlash as this would be the second station programmed to the Black community that Emmis would effectively silence under such a deal...
As far as Cumulus, WFAS White Plains carries some of their owners' talk lineup which could be cleared on WABC New York eventually. I would say they could move some of this to the FM side given the recent trend, but they seem content with their John Tesh station
This could be a 50/50 possibility.
Here's a guess from out of left-field: How about WVNJ Oakland?