During their earnings report earlier this morning, Nintendo announced that their upcoming Nintendo NX console will be launched in March 2017. Sadly, no actual details on the console were revealed during this report other than that it will be a "brand-new concept." Take that however you will.
"For our dedicated video game platform business, Nintendo is currently developing a gaming platform codenamed "NX" with a brand-new concept. NX will be launched in March 2017 globally."

In a weird twist, it seems as though Nintendo will not be showing off the NX at this year's E3 show. Instead, the company's E3 focus will be on the new Zelda game.