I will say ZombiU was cool, but it just seemed like a title that would release in the summer. Similar to Shadows of the Damned where it looks great and is pretty fun, but doesnt really feel like anything that would make you want to buy that system.
PS4 and Xbox One both look like they'll have interesting futures, but Nintendo still has a really good chance to turn things around leading into the holiday. Both systems really dont have anything that interesting at launch aside from improved third party titles (Infamous and Killzone look pretty cool, dunno what Xbox One is launching with since Titanfall is down the line), so they should go for a huge marketing push.
Seriously though, Nintendo needs to start pulling out some high quality, interesting commercials for its exclusives. And yes, moneyhat some exclusive developed titles and put serious marketing behind those too (did ZombiU even have commercials? Probably was too niche to really drive sales anyway).
A good and reasonable post. Nintendo's biggest problem was marketing and game delays due to the transition to HD. I have a feeling the Wii U will do much better than the naysayers believe once the games start rolling out. Remember these were the same people declaring the 3DS dead as well.