It's easy to say release an innovative console. You may as well also say "well just make a new franchise as popular Pokemon and Mario". It's not so easy to do that, clearly Nintendo thought things like a 3D screen and tablet controller were innovative and would drive hardware sales too.
I say ditch chasing the next fad/craze. Go back to the basics and just release a good solid console in fall 2016. Something that's a good deal more powerful than a PS4/XB1. That's probably at least a 2 year head start. Invest in some good software development, reach out to some Western studios and finance a couple of strong exclusives.
If you can innovate with the controller/interface without making the controller $100 freaking dollars, go for it. If not, back off. Use a powerful, but off the shelf AMD GPU solution, don't waste time/resources on another highly propietary chipset. Make the system for Western tastes first this time, Japan is done with consoles.
Good utilization of a 2 year head start should net them a 15-20 million unit headstart.
Launch the system with EAD Tokyo's next Mario game and push them to make it a game that really showcases the hardware, and make sure Mario Kart also is available in the first 6 months. Start both these projects well in advance of console release and give them extra staff if needed to finish on time. Create a new big Western IP and also make sure that is available in the first six months.
You will have success if you follow these basics IMO.
