I don't see the console doing very well at all. Probably the same group of 10-15 million people who bought the Wii U.
The GBA and 3DS both outsold their console counterparts by like a 4:1 ratio, that means 80% of people who bought Nintendo hardware said "hell no" to a Nintendo console in both of those gens. The Wii was different because it brought in casuals/soccer moms whom Nintendo has since lost, but even there the DS still blew the Wii's sales away by 50 million LTD.
So now the portable is going to have basically all the main IPs ... I don't think very many people will pay $300 to play the same games on TV with better graphics. Especially when so many people will already own a PS4/XB1 by then.
I will if that's what they offer, but I have a launch day Wii U and four (yes four) different 3DS models. I'm not the average consumer.
If they have two devices, and they play largely the same library, then I think it's going to be a 4:1 or even 5:1 split in favor of the portable in the real world.
