Water reflections should look significantly better, screen space ambient occlusion will become toggleable, and view distance will be cranked up to 11, meaning “environments will load in at a farther distance than before and higher-quality models will appear sooner.” Best of all,
“If you’re connected to a 4K display, ESO will run at true native 4K resolution without resorting to upscaling or checkerboarding techniques (methods many games must use to achieve near-4K resolution).”
The graphical upgrades are part of the Xbox One version of update 16, which launches tomorrow alone with the Clockwork City DLC already live on PC.
Source: Official site