Rumors are abound to varying degrees of possible legitness. The Pokemon Sun and Moon reveal lead credence to a leak about it and the idea that the new Zelda will pull a Twilight Princess and release on both Wii U and NX at the end of this year.
A new rumor going around from someone who seems to be considered trustworthy. It sounds like a huge tech jump for a system if it turns out to be true and it being easy to develop for will certainly work to bring more developers back to the system.
http://www.gamnesia.com/news/rumor-a-leaker-with-a-great-track-record-revealed-megatons-of-info-about-ni-It has a wireless HDMI dongle that attaches flush to the back of the device. You can pull it out and insert it into any display with a normal sized HDMI output.
-The device uses an evolved version of the Wii U's streaming tech to display in HD on the TV screen.
-Analog controls for movement have small motors in them for full haptic feedback (e.g. if you control a character and hit a wall, the sticks move away from the wall to simulate hitting it)
-Bluetooth synch with tons of devices is supported, including smartphones and tablets.
-You can answer phone calls and display text messages from your phone onto NX screen(s).
-It is closest to the Xbox One in terms of power.
-All tech involved uses the exact same hardware layout as the PS4 and Xbox One
-Any game that can run on PlayStation 4 or Xbox One can easily run on the NX with almost no modifications required. This is even more true if the game runs on Android OS or Unreal Engine 4. One third-party developer said "it's the easiest device we've ever developed for. You just take your code, compile it and it works."
-We should look to Pokémon GO to get an idea of the type of social features that will be in NX.
-It will take multiplayer, AR, and the StreetPass concept to a whole new level.
-The strengths of the device are its usability and ease of use.
-Devs describe it visually and functionally as "as if Samsung and the Nintendo 2DS had a baby."
-It looks friendly, but unlike what most people believe a Nintendo device to typically look like.
-The operating system, named NintendOS, is very powerful and has many modern features of mobile operating systems.
-Nintendo is trying to be very careful in showing it off for fear that it would be mistaken as running Android.
-Very strong networking functions, as it ties into multiple devices and services. This allows for a very competent and pervasive eco-system designed to constantly involve the consumer's life.