It’s a very new camera model but camera raw 8.6 updates are available as a release candidate (post beta) for CS6, Photoshop CC and Photoshop CC 2014. If you can’t wait for Lightroom compatibility you could convert your NEF files to Adobe Raw (DNG) using the stand alone release candidate converter.
Mac download:
http://download.macromedia.com/pub/labs/cameraraw/8-6/DNGConverter_8_6.dmg
Download for Windows:
http://download.macromedia.com/pub/labs/cameraraw/8-6/DNGConverter_8_6.exe