Its been noted before, that the new Ultra HD Blu-ray discs will probably not be playable from home computers, but another confirmation of that came this week, with the release of PowerDVD 16. This software is one of only two left that have authorization to play regular Blu-ray discs on PC's, so a few of us were waiting to see if Cyberlink would have any support in their software for the UHD discs. Nope.
Here's the specifications list for PowerDVD 16: http://www.cyberlink.com/products/powerdvd-ultra/spec-ultra_en_US.html
This isn't surprising, considering that there is not a single Blu-ray computer drive that has been officially authorized for UHD playback. A couple of LG drives can read the files on the discs, but without software that can deal with the encryption, there is currently no hope of playing them on a computer.
I doubt that anything will change this year, and we may never see a computer player for UHD, since that might prove to be a toehold for those wishing to make copies of the discs.