I'll chime, 8k, 16k, 32k, are real possibility's. Of course on a 70 ft plus size screen.
In 30 years we could have bigger screens in home requiring 8k to enjoy.
The human eye can catch so much resolution. If you sit 1 foot away of course you can notice more detail of native 8k. 10 feet away that resolution drops, that's why bigger screens are needed. So I imagine sometime there will be a push for something new and bigger always.
