How exactly is Nintendo going to make the NX a success?

[Cheebee]

Games. Games games games.

It's obvious they're in the process of preparing/hoarding as many games as they can for the NX, hence the barren release schedule for both Wii U and 3DS.

The majority of the already sparse lineup consists of 2nd/3rd party titles, collaborations, and low-budget spinoffs (Starfox Zero, Devil's 3rd, Xenoblade, Skylanders, Mario & Luigi, that Fire Emblem crossover, Fatal Frame, Animal Crossing amiibo Festival, Metroid Prime FF etc.)... even their biggest future title, Zelda U, doesn't have a firm release window, meaning it most likely will be a dual NX/Wii U release (ala Twilight Princess).

This should tell you they're very actively working on a lot of games they aren't willing to show yet. All of Nintendo's big studios aren't just loitering around, sitting on their hands doing nothing you know. Obviously they aren't showing any games for the current gen, because they're devoting the vast majority of their resources to next gen.

I fully expect NX to get a ton of AAA 1st party releases during launch and relatively soon after that. Zelda U (in the form of an optimized, definitive NX version), a new 3D Mario, a full-on Animal Crossing, whatever Retro's working on and the next original Pokemon RPGs all seem like a given, along with whatever else they're definitely working on.