Alright, since you Zelda fans have proven yourselves to be the craziest of the bunch (and me even crazier for trying to debate with you), I'm going to try and sum up what we know and what we don't:
1) No one said it was Link. Obvious, since that's the thread. Could be Aonuma trolling, could not be, only time will tell.
2) Aonuma gave an interview where he said the following:
“So, by no means, am I tired of it. Rather, the more we change it, the more I get fired up. Having someone think ‘Huh? Is this Zelda?!’ at first, then ‘Oh, it is Zelda,’ is what we’re going for. Something that wouldn’t make it matter whether Link or Princess Zelda appear in it or not. Something where it wouldn’t even matter if Zelda is actually a princess, or not.”
http://www.vg247.com/2013/10/03/zel...ional-we-cant-make-something-new-says-aonuma/
3) Aonuma revealed earlier in a direct that he wanted to look beyond single player:
4) Chances of it being a Ganondorf origin story: 0%. Let's think about this: Ganondorf is a singular person that appears in Ocarina of Time, The Wind Waker, and Twilight Princess. They're not all different, there has only been one Ganondorf so far. He is born to the Gerudo tribe, and is of the Gerudo race. This won't be a story about how he turned evil and his skin got dark, because that is AMAZINGLY racist and not true. We see his family in Ocarina of Time, the dude just looks like that.
5) Chances of it being Aryll (at least the girl from Wind Waker): 0%. Another obvious one: this whole game is a giant open world, not the ocean! Aryll only lives in a world that is all ocean! A new continent isn't discovered in that timeline for 100 years (Spirit Tracks). Now if you want to make the case that it is Link's sister who is always named Aryll because this series likes to do that, fine. But there is NO chance that it is Wind Waker's Aryll. There's no land other than small islands. And if there was a continent, it wouldn't have a civilization on it without some MASSIVE retconning.
6) That's not Epona, that's just a horse. Colors are very different.
Smaller fact, might be worth something: "Link" appears to be right-handed in the trailer, and in-universe, the only right-handed Link is the one from Skyward Sword, and that was for motion-controlled reasons. Every single other one has been left-handed, including Twilight Princess (again, the Wii version had the ENTIRE game flipped for motion controls). The odds of Nintendo doing Skyward Sword motion controls again is low, and so are the odds that they'll make Link right-handed again, since Nintendo is very fond of that being a part of him.
And with that, I'm out. This thread is giving me a migraine, peace