As far as I am concerned, I get the feeling that Aonuma does not want to push the series forward structure-wise. To put it bluntly, every Zelda game since Ocarina of Time (or more appropriately, A Link to the Past) has featured the same structure of "go to a certain number of dungeons, collect artifact X from there, then have an event and then collect other artifact Y in another series of dungeons". It just feels like there is a thick crust on all of the series and while adding certain elements does indeed give off a vibe of having something new, it never was something as mind-blowingly different as Majora's Mask. Also, I don't think the addition of either touch or motion controls is that much of an innovation rather than a "gimmick". Which I don't fully condemn, but I'd like to state here that this is not enough to get me engaged in a game. It is just a new element fumbled on top of an archaic structure.
What Zelda needs right now is to emancipate from the legacy of both Ocarina of Time and A Link to the Past and go into a new structure which does not collide with what has been established. Alas, this is a very hard step to take, seeing as both fans and creators have a bizarre obligation to the series's legacy. But what is the series's legacy? In my opinion, it is the common elements of Zelda (and its clones): 1) a fantasy world 2) melee-oriented combat 3) dungeons 4) which are accessible through a spread-out overworld 5) exploration and puzzles. That seems like a whole lot of stuff, but it is really not that restricting of a frame to work in. As long as any new Zelda stays true to these elements, they can do whatever they want... but right now they're just clinging to OoT (which was what I meant when I said that Aonuma is messing with the series's legacy (in a bad way)) and heap different gimmicks onto it in hope they can pass it off as "new".
I really hope that Aonuma stays true to his word of wanting to rip the way you visit the dungeons out and replace it with something new. It may not be something fully new, but I regard it as a start to something better. And if Aonuma is not able to revolutionize the series... I think it would be best if he stepped down.