In an article on important sports dates of 2012, AM New York's opinion on where the Islanders will land was expressed:
Though the Nets aren't scheduled to hit the hardwood until November, Brooklynites will pack the brand new Barclays Center for one of their native sons when Jay-Z plays the first of several scheduled concerts to commemorate the opening of the state-of-the-art arena. The new Atlantic Avenue home of the Nets is expected to seat better than 18,000 for basketball, and don't be shocked if the hockey-ready facility lures the troubled Islanders Downtown eventually.http://www.amny.com/urbanite-1.812039/2012-in-sports-key-dates-to-remember-1.3413605
Even with all the recent new about the Belmont Entertainment Center and the Heartland Project, the Barclays Center is the only guarantee new hockey arena in the metropolitan area. This small fact makes it the front runner still for the Islanders staying in the New York market.