I'd love to see Nintendo turn things around with Wii U but I feel as though they missed their window of opportunity. They went with a hard to develop for architecture, they didn't advertise well, they priced the system too high and failed to have a deep enough price cut when they dropped the price, they've been dragging their feet on improving their online, and their publisher relations have dropped like a rock. Naming the system Wii U was bad enough because by default people associated it with "Wii" but they messed up in so many other areas, it's baffling. Could they turn things around? Well we're already seeing better sales in North America but I doubt we'll ever see Xbox One level sales, much less Playstation 4. Heck, I doubt we'll even see the system reach 20 million before the NX comes out.
