I seriously can't see how fucking the fans by not releasing games could help Nintendo. I'm sure people who have paid $300 for a Wii U and see how not even Nintendo makes games for it would be excited for the next console. Paying $300 (or even more) for a console with just a year of games support.
The Wii U has lost money for Nintendo despite their premiere IP from last gen getting on the system (Wii Sports + Wii Fit + Wii Party U + Donkey Kong Country + 2D Mario + 3D Mario + the promise of Mario Kart + the promise of Zelda U + the promise of Smash Bros.)
What are the solutions to this dilemma that involve propping up the Wii U?
1) Bite the bullet on a major price cut? Hell no. Nintendo is already losing money with every Wii U sold...this is significantly cutting into their profit margins. At this stage they can't afford to significantly loss-lead with the console. And, they already slashed prices by $50 in key territories a few months ago.
2) More major games? More major games means more greenlit projects which means more overhead which means more 100+ person teams...and yet, what is Nintendo going to get out of it? MAYBE the Wii U will have a slight recovery? MAYBE it will end up somewhat like the GameCube? Or, Nintendo could use all that time and money in starting with something fresh, something properly designed and attuned to the modern market...instead of pursuing mediocrity.
3) Keep the console alive "for the sake of the fans" into 2016 or 2017? Not practical. Investors are irate NOW. Investors want change NOW. We are sick and tired of -35 billion JPY operating losses and the third consecutive year of no performance-based dividends. Nintendo needs to make money in their core business NOW and the avenue that will allow the company to do that while taking into account their unique corporate culture and situation in the industry...should be achieved as soon as possible. The Wii U is not that avenue. Also, the 3DS isn't getting any younger. Pretty soon we're going to need a successor to take over the reigns.
4) Discontinue it slowly? This is the best option. Nintendo is knee-deep into its current Wii U projects (Mario Kart 8, Zelda U, Smash Bros. U, Hyrule Warriors, etc.) To immediately cancel those makes less business sense than finishing them up, releasing them at retail and pray they end up mitigating some of the losses the hardware generates.