The thing is consoles are usually used way more efficiently than the PC counterparts. The good news with the new consoles is that they have basically identical uarchs. The games will be almost a copy paste from consoles to consoles or consoles to PC. The funny thing is that everything will be optimized for AMD hardware, Intel and Nvidia should be worried about this. This will put to rest all the Nvidia proprietary software solutions they have with gamework and it will impact Intel CPUs greatly in games.
2160p will be mainstream next year and 8k will not take 10 years to go mainstream. The next generation consoles will aim for 8k, so we are talking about another 5-7 years before 8k is the new mainstream. Technology will only go exponentially from now on. If you remember 15 years ago, smart phone, tablets, internet, automation in vehicles, chiplets... none of this was existing to the extent we have today. Only a fool can deny the real patterns of technology.