Jan - Feb 2013 can really still be considered part of Wii U's launch window. Wii U's launch in Japan wasn't all that bad -- it was the period afterward that defined Wii U as a failure.
I'd recommend breaking this down by quarter.
Q1 2013 would happen to be really healthy for Wii U in Japan following on launch momentum and release of Dragon Quest X and Monster Hunter 3 Ultimate. Thereafter, practically nothing. Not much to interest the Japanese (or anyone else)
Do a comparison of Q2 Q3 2013 with that of Q2 Q3 2014 and it may show a very different narrative than the one Seece likes to push.
I predict NX launches in 2017 - not 2016







