I seriously dont think the wii u is overtracked that much.

[OfficerRaichu15]

I mean I know its overtracked but I only see it being overtracked by 200k tops

thats because you  100k overtracked in america

then the rest ww(we have european sales and there about right)

with support Ill use this thread from yesterday showng lifetime sales of some countries in europe

http://gamrconnect.vgchartz.com/thread.php?id=189183&page=1#22

heres a graph from it

Console	Region	VGC	Official	Difference
PS4	US	3,871,448 as of Aug 2, 2014	3,760,000 as of Aug 2, 2014	Over by ~100k
XB1	US	3,071,700 as of Aug 2, 2014	3,047,000 as of Aug 2, 2014	On spot
WiiU	US	2,722,627 as of Aug 2, 2014	2,629,000 as of Aug 2, 2014	Over by ~100k
PS4	Germany	538,413 as of Jun 28, 2014	540,000 as of Jun 28, 2014	On spot
XB1	Germany	167,546 as of Jun 28, 2014	170,000 as of Jun 28, 2014	On spot
WiiU	Germany	351,560 as of Ago 16, 2014	350,000 unknown date	On spot
PS4	Italy	(260k today)	220,000 as of Jun 26, 2014	I don't know
PS4	Spain	(330k today for Spain + Portugal)	275,000 as of Jun 12, 2014	Under
WiiU	France	358,267 as of May 31, 2014	360,000 as of early of Jun, 2014	On spot

See all both france and germany are spot on now(and uk is likely too). 

Now i believe 100k ww is a more likely number imo since those countries arent responsible for as many sales compared to us,uk,japan,germany,farnce,etc.

so in conclusion I think wii u is nly 200k overtracked at most