Looking back at that Wii U Zelda tech demo ... I kind of doubt this was ever running off actual Wii U hardware. It looks better than BOTW/TOTK (aesthetic debates put aside).
But Switch 2 could really make an engine like this cook and enhance it significantly. A OoT Remake that looks like this but better would be outstanding.
They could really enhance the story too ... OoT actually has a pretty cool story, but the derpy N64-era visuals really could not convey it that well and lacked punch.







