According to Mat Piscatella "Next Gen consoles sales will not have a major effect on Switch sales"

[Pyro as Bill]

DonFerrari said:

Pyro as Bill said:
Did DS, PSP or Wii have any negative effect on PS3 in Japan?

Not really, the effect on PS3 in Japan was a change in the market landscape.

How so?

PS2 (23m) + GC (4m) + XB (0.5m) = 27.5m
PS3 (10.5m) + Wii (12.8m) + 360 (1.7m) = 25m