Interracial site BrothaLovers has announced that they are planning to go 4K this year. That will be a big step for them since their videos have always been very low quality and amateur-like at best, so I'm not sure if it will actually happen. It will be a few more years until consumer 4K camcorders take off, but next year is definitely the year that consumers will have wide access to 4K hardware on all levels, therefore giving us a flood of 4K porn. As for 4K Blu-Ray, it is called UltraHD Blu-Ray and will be out towards the end of this year. It's built on BD-XL - a 100GB extension of the BD-R format - and Digital Playground will probably be the first company to release a title on that new format since they have a sizeable cache of feature productions that have been shot in 4K over the past several years.