Interesting. I wonder what their reasoning would be. NYC and the Northern suburbs are already pretty saturated with AC and Hot AC stations - 106.7, 102.7, 95.5, plus 100.7, 103.9/106.3, 107.9, 99.9 all come in as well in most of Westchester and the Bronx.
Perhaps they're preparing to sell the station and will just keep the current format on until a sale?