Honestly I bet you they already have Tears of the Kingdom ready for the next system alongside the switch version. Feel like it's probably actually designed for the next platform and the switch release is just a "low settings" version of the game they actually made. Assuming they have specs for the next console iteration, and knowing it can't be that far off, as well as Nintendos penchant for releasing cross-gen zelda games, it would actually make sense for them to have just made the game for the new console and dialed it back for Switch now. Saves money on development in the long run because you won't have to update it later and allows them to do the ole double release and milk some extra sales too.
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