Is it just brand loyalty? Everybody went nuts at E3 with the Zelda trailer, I understand that Zelda appeals to an audience far bigger than just gamers...but what exactly do people see in it? Zelda gameplay has literally not evolved 1 bit since OoT (over 15 years ago) and as far as adventure genre goes, it's possibly the most shallow game of the genre.
Every other game like it, like the witcher, dark souls, or even skyrim is waaay better at the adventure genre than Zelda.
I mean seriously, Zelda is always like 4 steps back from the other games. 2015 and just now do they decide to try "open world" (which im pretty sure will either be extremely restrictive OR very small). The story is nothing special either, it's pretty mediocre and short, and filled with cliches of the saga (for example:the main villain switches halfway through the story). They just use the same recycled plot and change a few things to make it look a bit different.
Really at this point, Zelda has nothing going for its name other than brand loyalty.