I can't see it doing well, to be honest. I find it unattractive as a home console and too expensive for a handheld.
I'll be pleasantly surprised if it sells more than 35 mil. lifetime.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.