Despite 4K only having started making it through the consumer market around 2014, the industry is already working on the next generation of 8K screens.
These will be resolutions in the order of 8,000 pixels horizontally and 4,000 pixels vertically. 10K and 16K resolutions are also being worked on.
While 8K and 16K are not released, 4K TV sales are expected to boom over the next years as prices all fall. In 2015 alone, the market grew 160% with 32 million units sold, according to Future Source. By 2020, this is expected to grow to 140 million.