I want Monolith Soft to work on a Zelda title.
Like, Takahashi Monolith. Not Project X Zone Monolith.
Then you probably should play Skyward Sword, because they worked on that. And there's a good chance they're doing work on the new Zelda as well.
Project X Zone was developed in the same branch Takahashi is based (Monolith Tokyo), which worked on Skyward Sword. A Link Between Worlds, etc., were contributed to by the Kyoto branch, but that's still under Takahashi's purview as studio head, as far as I'm aware.