http://www.theverge.com/2016/4/5/11367592/star-trek-4k-ultra-hd-blu-ray-paramount
Paramount is pricing the 4K UHD Blu-ray format somewhere in the region of $33. That sounds extreme, but is (sadly) par for the course for the format — films from Sony's 4K streaming service, for example, cost $30 a pop.
You can buy a multi-format release of Into Darkness without 4K UHD for less than $15
Nevertheless, the release is another minor milestone in roll-out of the 4K UHD format, which offers four times the resolution of full, 1080p HD and double the number of colors. As with Paramount's upcoming releases, there's also the promise of better audio quality and color range, thanks to Dolby Atmos soundtracks and High Dynamic Range (HDR) imaging.