CBS will have to spin off one station.
And, using elimination...
92.3, 101.1, and 102.7 are going nowhere as far as being owned by CBS. FM has a lot more life and potential left in it than AM.
880 isn't going anywhere. I would think 660 will eventually carry the CBS Sports Network 24/7, with 880 AM remaining as is. 660 COULD go to Cumulus to carry the network, as they are distributing it, I guess, thus leaving the news outlets alone. 66 and 88 have a definite signal advantage over 1010.
Channel 2 and Channel 55. 2 is going nowhere. 55 is a wildcard.
When it comes down to it, either 1010 or 55 will go, IMO. CBS could spin off 55 and not have to worry about re-shuffling its radio properties further. If they opted to spin off 1010, if WINS News continued, where would it go? I'd guess 92.3?