The new supercharger at JFK (http://www.teslamotors.com/forum/forums/supercharger-jfk), and potentially the one coming at EWR in Newark, will be at the facilities of something called Airport Plazas, which is building a network of service centers at airports across the country. This is from their website (http://www.airportplazas.com/index.php): "Our mission is to promote more diversified fueling options, building energy efficient service plazas that will help the environment for years to come." As has already been noted on other threads, a full build out to their 4 open, 9 on the way, and 7 more planned locations would be a major boost to the urban supercharger landscape.
For AP, a supercharger is an attraction that supports their core business. At least small sets of other supercharger locations are apparently also being developed with malls and other service outlets. This makes sense for both Tesla and their apparent partners, although it is not clear whether the partners are actually contributing $.
I am wondering about a broader implication. Superchargers supposedly only cost $150,000, which will presumably drop with economies of scale. This is peanuts for a high end retailer, hotel or casino. Why wouldn't they just buy one? I can see 10 supercharger sites on Rodeo Dr, 20 on the Las Vegas Strip, and 500 in NYC (if there were some place to put them). In the simplest version, the customer would pay for it, and would also pay Tesla to maintain it. Everyone is happy.
Is this the real reason that the stated supercharger plan skips urban areas?