But, if I were to compare the Zelda series to itself then Zelda is its own worst enemy. ZeldaU is going to make it or break it for me. Nintendo and Zelda are among the last video game franchise I am holding out on. If ZeldaU fails to impress then I'm done.
You're acting as if Zelda is a shell of its former self. Quite honestly the only thing it's lost exploration. It's maintained a pretty consistent level of combat and puzzle-solving with most releases, especially Spirit Tracks and Skyward Sword. SS also did nothing but improve on modern Zelda's conventions by nailing elements other modern titles failed to, bringing back some classic elements, introducing new ideas, and taking steps in the right direction towards bringing back classic elements it didn't come full circle on.
Needless to say, I'm lost as to what you mean by "fails to impress". Even though Zelda has devolved from what it was at its peak, it's still been consistently great as a whole and has really stepped its game up as of late. Hell, it's even better than before in a few areas. Just a bit confusing to me.