It looks like Lego has released another new exclusive set. This time an employee exclusive version of the Lego Kladno Campus 2015 (4000018). Kladno is a city located in the Czech Republic and is home of a huge Lego factory known as the Kladno Campus. For the 15th anniversary of its opening Lego has created an architecture style set for the employees. Because, of the exlusivieness of this set, you can only find it on Ebay or other market place stores. So far going for about $150-200!
Interestingly, Lego recently released an exclusive set based on this factory, the Lego Kladno Campus 2012. It looks like the facility has grown a lot since then.
There is a whole Lego theme of production facilities, more details here: http://www.brickowl.com/catalog/lego-sets/miscellaneous/internal
Check out a bigger photo of the Lego Kladno Campus 2015 Employee Exclusive over on Flickr: https://www.flickr.com/photos/52416370@N03/17143976246/