They were released simultaneously, Breath of the Wild was a Switch launch title. Same with Twilight Princess (actually I think the Wii version might have launch

They were released simultaneously, Breath of the Wild was a Switch launch title. Same with Twilight Princess (actually I think the Wii version might have launched a few weeks before the Gamecube, I assume that was more to incentivize people to buy a Wii. Not the potential issue here regardless) Tears of the Kingdom already had its launch and sold a TON of copies. If the new console isn't backwards compatible, they either are going to have to resell it to you which is a big ask, or just not have a new Zelda game available to play on their new system for another 6-7 years, which is not likely.