Actually they saved most of their bigger guns for E3.
Super Smash Bros. U trailer
Super Mario 3D (EAD Tokyo) unveil
Mario Kart U unveil
Bayonetta 2 unveil
Retro Game unveil
No offence, but Wind Waker Reborn, Xenoblade 2, and Yoshi's Land are cool, but the above are simply bigger franchises in most cases and WW Reborn is just a remake of an old game. We had seen Wonderful 101 before.
To be honest they showed "a lot" without showing a lot if that makes sense. We didn't really see anything of SMT x Fire Emblem and just got a few test images of Zelda: WW. We'll probably see more of those in future Nintendo Directs.
The Smash trailer will be the big thing at E3 they likely will debut it with some surprise characters much like the Solid Snake moment at E3 2006.
I'm also going to guess this one -- they will announce a price cut for Wii U at E3.
