Knight Landing, the second version, is supposed to be coming out in early 2015. If you want to get one be warned you might need a special motherboard as well if you were thinking of tossing it in a consumer box.

http://www.pugetsystems.com/blog/2013/08/06/Will-your-mother...

Here is a link to Intel's promotion page it has participating vendors in various locations:

https://software.intel.com/en-us/articles/special-promotion-...