It is official. At least according to WotC and several news sites including Forbes, D&D (next) is due out in the Summer of 2014. My guess would be just before or at the time of GenCon.
This coincides with the 40th anniversary celebrations for D&D.
For me, I'd love to see a softbound basic rules set in late spring/early summer, and the rest by GenCon. I'll be happy to get a look at it whenever it comes out.
Meanwhile I keep looking at ideas to steal or create for a version to call my own.