The nVidia Shield is only 8 months younger than the Wii U, so "Shield 2" hardware would likely be much better.
There's no way Nintendo could sell a TV-attachable console (Based on rumors) with graphical capabilities that are inferior to the Wii U. That would be a death sentence. Now if it is primarily a portable console, then I could see them do it, but there would likely be a lot of disappointed costumers.
But then again, if all else fails, we do have Mario Light on the iPhone soon anyway...
There's no way Nintendo could sell a TV-attachable console (Based on rumors) with graphical capabilities that are inferior to the Wii U. That would be a death sentence. Now if it is primarily a portable console, then I could see them do it, but there would likely be a lot of disappointed costumers.
But then again, if all else fails, we do have Mario Light on the iPhone soon anyway...