I'd love to have some of the more formulaic elements return. I miss classic dungeons.
While I love how intertwined with the storytelling the divine beasts are, I wish we could find a happy medium between that and actual themed dungeons. I do feel the dungeons could be much more integrated with the story and also provide more visual storytelling but I love the concept of having them in the world to discover and solve.
And while I like the shines and having them all in the same look as the divine beasts makes sense for BoTW I'd hate to see that kind of design become the standart of the series. Variation is one of the things I loved most about the Zelda franchise along with it's colorful kooky characters.







