Wii U sales trend may be just as expected if we look at Nintendo's home console sales.

[S.Peelman]

Max King of the Wild said:

MohammadBadir said:
"Let's just ignore the Wii because it doesn't fit right with my theory".

outliers get thrown out ofstatistics all the time. thats normal and really people who want to point to wii you are grasping 

It's only an outlier if the data-points after the point deemed the outlier follow the same trend as the points before said outlier. While it's looking like the trend will at least level off, we don't know for sure yet. You can't definitively say, that the Wii is an outlier.