EDIT: The position has been filled (I bet the next Ninty console will be close to or less than PS4 in power)

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Soundwave said:

Too little, too late.

The PS4 and X1 will be passing 80 million combined install base by fall 2017 (the soonest Nintendo could realistically mobilize a full generational leap from the Wii U and still have actual software to play on it).

Same thing that happened to Wii U would happen to your proposed system, people would ignore it. The PS4/XB1 have their established online communities (XBLA, PSN) and will have a headstart of hundreds of games in their library by then too. By then both systems will likely have had further price drops too. 

No one is going to give Nintendo a participation ribbon for showing up 4 years late to the party.

Stop avoiding the question: do you wanna bet? :p