I think what happened was that public broadcasting interests in NY and PA picked up the stations.
http://www.radio-info.com/news/new-yorks-wnyc-and-phillys-whyy-will-split-up-the-nine-njn-fm-stations
New York’s WNYC and Philly’s WHYY will split up the nine NJN FM stations
>>WNYC Non-commercial WNYC-AM/FM (820/93.9) announced Monday that it will buy four of the nine New Jersey Network public radio stations offered for sale by Governor Chris Christie. WNYC will purchase WNJY-FM (89.3) in Netcong, WNJP-FM (88.5) in Sussex, Trenton’s WNJT-FM (88.1) and WNJO-FM (90.3) in Toms River. The four stations cover Northern and Northwestern New Jersey, the state capital, and heavily populated Monmouth and Ocean County. Christie says that New York Public Radio will “create a new public radio station focused on New Jersey news, and with a bureau in the Garden State.” The AP reports that WNYC will pay about $2.8 million in cash and in-kind contributions.
>>Philadelphia-based radio/TV pubcaster WHYY will take the other five licenses, located in Southern New Jersey and near Philadelphia. Those are WNJS, Berlin (88.1), WNJB, Bridgeton (89.3), WNJN, Atlantic City (89.7), WNJZ, Cape May (90.3) and WNJM, Manahawkin (89.9). The AP says WHYY is committing $1.5 million in cash and in-kind contributions.