I think it would depend on the title. Titles with very intensive RT effects are likely to see dips at 1440p.
Watch Dogs looks so good. Exactly the right game for RT reflections.
Dying Light 2 seems to be doing GI and shadows based on this comparison.
https://images.nvidia.com/geforce-c...ing-interactive-comparison-001-on-vs-off.html
Metro getting an update to the GI implementation when the DLC comes out with support for area lights, point lights and emissive lights. Really want to see this in action.
https://images.nvidia.com/geforce-c...ing-interactive-comparison-001-on-vs-off.html
Also don't sleep on the trailer for the Tencent game. I think their implementation looks great and feels natural.
I've got mixed feelings about your exemples. They change too much about the overall look of the game. It's like a wholly different artistic direction.