Personally I am loving the format of the current switch games, and Nintendo has signaled that they intend to keep making games in this style though not necessarily a sequel.
I would love first and foremost for the story telling to be brought back to the standards of Ocarina of Time, Wind Waker, and Twilight Princess.
Also, to me the best thing in the 3D games has always been the pacing, you have your first initial quest, that leads to Link powering up in a few different ways. Then Link is set on a second quest, becoming more powerful again. Then a twist of some sort, though that’s optional. Then finally the climactic battle with the big bad. I would also like to see more of an after story, though it is traditional for that to not be a thing at this point.
As for settings, I would LOVE to see a game set after spirit tracks in New Hyrule in the midst of an industrial revolution, mixed with magic.
How about you, what are your wishlist items for the next/future Zelda games?
Like others, I do miss the old style dungeons and linear storytelling. I think it could be done by merging the gameplay styles of the new games and Skyward Sword/Wind Waker by turning the series more into a Metroidvania. Just have major regions be unlocked by needing certain equipment, or even have the story advance using a time mechanic of some kind that requires certain events to advance time perhaps.
Also, proper fishing mechanics.