Care for some more Nintendo Direct speculation?
During the Nintendo Direct Pre-E3 showing yesterday, there was a Wii U zombie game used as the basis for the demonstration video. For the sake of investigation, I'll be analyzing the snippets of the game, piece by piece, to see if I can determine if we're looking at a real game or not.
The first thing I did was meticulously inspect the backgrounds of the game video (not focusing on the game itself) to see if I could extract anything. Long story short, I couldn't really find anything related to Nintendo or the game itself. The comic book poster behind the guy was too blurry, and everything else was seemingly non-related. That cheap action figure does have some hints of Captain Rainbow, though.
Next, I paused the video during segments of gameplay. First off, these graphics look a generation behind. If the game is going to be on Wii U, it sure as heck isn't ready right now.

It's also hard to tell if this is a first-person shooter or a rail shooter. For one, the guy is moving his controller around quite a bit, though some screen shots seriously look like the game is built for free control. The other thing of serious note is the above screenshot, where ZR (a new button for the GamePad) is shown on the screen, suggesting a quick time event. Either this game is a real tech demo, or Nintendo is just really good at paying attention to detail. Also, consider how this is flashed up on the screen for a second. If this game existed in no form whatsoever, why would the ZR flash on the screen?
Finally, you may have noticed a reference to antibody scanners, scanner updates, and other scanner talk that sounds directly out of a survivor horror game. If this isn't a real game or demo, I give Nintendo serious credit for putting that extra detail in.
Honestly, I feel like this game, at the very most, may show up as a tech demo, but its place in a conceptual video with most of the interesting action happening off-screen (along with the low-quality graphics) makes me feel like this thing will not show up at launch. I suppose we'll have to wait until more information comes out of Nintendo's press conference this Tuesday.
Zombie screenshots via Zelda Informer