For the official launch of Yoda Chronicles TV series on Cartoon Network on the 29th May 2013 a Yoda Chronicles Promotional Box Set was released. The box art says “secrets to reveal there are” while the rest of the box is covered in LEGO lights, with some of them appearing to flash. The box contains a new LEGO set consisting of 408 pieces.
Once the set is built you can see it is the Jedi Holocron Room from the Yoda Chronicles. The set includes a minifigure of Yoda, a female minifigure with long brown hair, and a droid.
This set will not be sold in stores, and is an exclusive teaser for the Yoda Chronicles event in New York, so I imagine you will be able to find it on ebay in the near future!