I'm still not ruling out a winter 2014 release. I mean if we think about it, this game has been in devopmemt for quite some time now (most likely when they completed their work on Skyward Sword). However a lot of this time could have been the experimentation/brainstorming stage. Anyway, supposedly, the title was actually going to be announced at last year's E3 which gives us some incite into their developmental stage. I guess they weren't quite ready, but they made enough progress that they thought about it.
This reveal that we're expecting is somewhat overdue and I think they're not rushing out footage to please the fan's appetite, which they did with the TP reveal in 2004 what with all the beta footage with no clear title, relative plot, or direction. That trailer was released quite prematurely which is why it took over two years for the date to be finally revealed. Something tells me that this year they'll have a lot of show off, the question that remains this the release date. 2014 is me being optimistic but it certainly isn't beyond Nintendo; they're currently desperate for sales and is an entire year going to be too long? Or will it have the opposite affect? Will people buy into the hype, buy a Wii U, play it's games, and then get the new Zelda.
However out of all the anticipated release dates, 2015 seems like the most realistic year. Maybe Nintendo could deviate away from their traditional and release the title near spring time(?) who knows... All the signs are pointing at 2015 though. I mean we've had two Zelda titles recently: Wind Waker HD and a completely new game in the shape of A Link Between Worlds. We haven't been deprived, so to say, like we were in the time gap between TP and SS.
So 2015 is my guess. November would be the month that I would most expect, but don't rule out a possible change to draw in more sales if Nintendo are in trouble.