dilbert said:
Are there any 8K projection systems? (where is this 8K footage screened)
What about real time editing/transcoding of 4K?
The answer is No, but plans are laid, several years ago, in fact, work began.
Utube has 8K video, which is more of a stunt. Two years ago, LG demonstrated a 8K TV. Displays are on the way, as soon as there is 8K content, they will arrive.
http://www.digitaltrends.com/home-theater/forget-4k-lgs-98-inch-8k-tv-window-future-weve-waiting/
It takes many years to develop a practical new system. Some broadcasters like NHK have said are going to 8K and are pushing hard. All the big companies are working on 8K. NHK has plans to test 8K Satellite broadcasts of the 2016 Olympics, and to use full scale 8K capture and broadcast of the 2020 Olympics in Japan. That seems questionable, or at least, I question that many individuals will have 8K capability, more likely, special theatres will be equipped to watch the Olympics in 8K via satellite or cable over prototype equipment.
Sony, Canon, Red, Arri, etc are certainly wanting to be chosen as the company to capture the 8K Video. The display is R&D, its being shown for PR purposes, but it also lets you know that 8K is coming, but not next week.
Of course, anyone can make a 8K output Video camera, but true broadcast quality 8K is a much more difficult thing.
I'd be surprised to see much in the way of 8K in 2020, but, at my age, I'd be happy just to still be posting here.