How long will the Wii U stay ahead of the PS4 in Japan after next week?It begins-Week one!

[Sharu]

Aerys said:

anyone thinking Wii U will be ahead lifetime is too young to understand how things work.

You can think Wii U will be ahead during it's lifetime, it is possible maybe, but it wont during all the generation, because PS4 will last longer.
It's insane to think a 4 year console(be realistic) with 1-2 big system seller only by year will outsell a (at least) 6 year console with all 3rd party support

Do you have any proof for 3rd party support for PS4 in Japan? For me it seems that Japan game makers shifted to 3DS/Vita/some niche PS3 games and waiting for how the things will turn out.