Despite being a controversial entry in the franchise, The Legend of Zelda: Skyward Sword introduced a lot of ideas that the series has yet to circle back to in some of its recent entries. While Zelda: Tears of the Kingdom features sky exploration in addition to traversal around the land of Hyrule and the Depths below, it's not a direct sequel to The Legend of Zelda: Skyward Sword and fails to follow up on certain story elements of that title. There is one major part of Skyward Sword's plot that could be the premise for a future Zelda title if the series wants to create another open-world entry.