One of the best AM day time signals in Pennsylvania.No, for several reasons.
First, the WARM license still exists. Just because it's silent under an STA doesn't mean it's gone, and in fact there's every reason to expect it will return.
Second, WHP protects more than just WARM. It had to protect WTAG 580 in New England, WMCA 570 in NYC, and so on. Even if WARM did go away, it wouldn't open up much room for anything.