Let's be honest now. This has literally NEVER WORKED for anybody! Before companies actually do it they always think it will work, and it does seem like a good idea, but it always seems to result in a lack of software (1st party and some cases 3rd) and they end up losing the generation anyway. And I understand there always needs to be a first, but should they all launch so they're ready or release early to maybe boost sales by like 1 or 2 million.
Since I am sounding pessimistic, there are some pros to it, like you get the console out there, the name is more recognized, (this didn't work for Wii U unfortunately), and even if there's nothing big about it there's still a certain level of hype since it's the first "next gen" console. But for anyone who disagrees, look at every gen since the original.
3rd gen
Atari 2600 (1983) 27.64m
Sega Master System (1985) 10-13m
NES (1985) 61.91m
4th gen
Sega Genesis (1989) 29.54 m
SNES- (1991) 49.10 m
5th gen
Sega Saturn (Spring 1995) 8.82m
PlayStation (1995) 104.25m
N64 (1996) 32.93m
6th gen
Sega Dreamcast (1999) 8.20m
PS2 (2000) 157.68m
XBOX (2001) 24.65m
GC (2001) 21.74m
7th gen
XBOX 360 (2005) 83.55m
PS3 (2006) 83.81m
Wii (2006) 101.11m
8th gen
Wii U (2012) 7.6m
PS4 (2013) 15.5m
XB1 (2013) 8.1m
Hope that proves my point. Also just used numbers from the homepage for 8th gen consoles
XBOX ONE/Wii U/3DS/PC
RIP Iwata 12/6/1959-7/11/2015
Thanks for all the great memories!