I maintain the NX is a ball of energy that speaks to you telepathically with the voice of Morgan Freeman. Also, you can throw it like a Spirit Bomb and Reggie will appear outside your window yelling "Do it now, Gohan!"
May as well have a laugh at my rough sketch. (This mock-up feels unlikely to occur)
What is shaded in blue are the Free Form Display Donut Shaped Screens. They give context inputs, the sticks are clickable so that either you have one context input, eg jump or multiple context inputs depending on the direction of the stick if twin stick camera and movement isn't required.
The shoulder and trigger buttons would allow for multitasking if twin stick movement and camera controls are required.
Red circles are speakers. Green shading is the display screen. Then, the Share and Home buttons are shown.
Edit: I feel that without any physical buttons added on the face... I'm sure the shoulder buttons would be fine if it was, hold R to dash, click stick to jump it'd be fine, press L to do additional action or click left stick it'd be fine.
The alternative is pretty much similar to the dev-kits anyway.
If you remember the fake controller thread which surprisingly baited some insiders including the situation above where journalists talked about it because it may have been something they heard from an insider.
The only question is if the above is true and that it is supposed to be the concept (for the retail model) for the NX that was presented to third parties that caused excitement (maybe) or, it's fake or, the design changed anyway during the last 6 months.