According to The Fourth Period, the NHL is discussing the idea of having additional outdoor games next season, besides the Winter Classic, and NY and LA are being considered as venues.
Dating back to last year, there have been rumblings about a non-winter classic game happening at Yankee Stadium.
Adam Rotter: I heard the same kind of rumblings a few weeks ago about an outdoor game, most likely at Yankee Stadium, at some point next season. The date and opponent are still TBA but it if it happens, it will likely be a regional opponent like the Islanders or Devils. It is not clear if getting an outdoor game would impact the Rangers getting the Winter Classic in the future.
THIS SECTION has been following the pursuit of having the Winter Classic in NYC.