]This post has been edited to add the official picture of the Barclays Center hockey configuration. It doesn't look like the horseshoe design mention by Frank Sanna below.
http://www.nytimes.com/2012/02/01/nyregion/at-barclays-center-islanders-to-play-where-hockey-was-an-afterthought.html?_r=1According to Robert Sanna, Forest City Ratner’s executive vice president for construction and design development, the seating capacity will be reduced to 14,500 from 18,000 for basketball, which would make it the league’s smallest rink. Retractable seats will mostly be collapsed on one end, closest to the Atlantic Terminal side, and therefore the alignment around the rink will resemble a horseshoe.Mr. Sanna said the construction team would also have to design additional locker rooms for hockey players.The ice, which will be manufactured in July, will stay underneath the basketball floor permanently. Whether this leads to an N.H.L. franchise that will wear Brooklyn on its jerseys, Mr. Sanna could not say.
Before we make a final judgement on the arena and it configuration lets see how October 2nd goes.