Aonuma's comment of the person in the trailer not being Link is really messing me(and pretty much the rest of the Zelda fanbase)up. What does he mean?! There is evidence that supports both sides.
It is Link:
Obviously it looks like him, when most people first saw the character, they assumed it was Link.
It's a Zelda game, so of course the main character is supposed to be the Link we all know and love.
It isn't Link:
Aonuma's made so many comments about wanting to really surprise players with Zelda U. One way to do this would be to include another playable character.
The character slightly looks more feminine than Link usually does, though this other character does not have to be female to be different from Link.
He/She is more accustomed to using the bow, maybe we can choose to either be the traditional Link with a sword, shield, and a variety of tools, or a character that focuses on other weapons more, like the bow.
He/She is right-handed. Which technically may not mean anything, but usually Link is only made right-handed if the control scheme requires motion controls, and I am pretty sure Zelda U will use the gamepad for more traditional controls.
I may have more points to suggest this character isn't Link, but I can't really say either way. I doubt Aonuma was trolling, there must be something to that comment.