The last big release mainline 2D Zelda (not counting the GBA/GB games as big release ones, comparatively), before Link Between Worlds, was Link to the Past. Since then, for big release mainline 3D games, they've had Ocarina of Time, Majora's Mask, Wind Waker, Twilight Princess, Skyward Sword and Breath of the Wild. I really want another Link to the Past/Link Between Worlds-scale 2D Zelda game, but it's probably not too likely (especially if this new Zelda already in development doesn't actually end up being legit).
Of course, Breath of the Wild did a first and made me hype af for a 3D Zelda game, so if they do release another 3D one on the Switch, I'll probably enjoy it. I just really want a new big-time 2D Zelda game, considering LttP/LBW are two of my all-time favorite games.