Wii U has peaked.
Its still at 10million units sold after 3years or so on the market.
Next year it ll most likely get replaced by a new Nintendo console system.
I just dont think that its possible at the rate its selling currently for that to ever happend.
20 million units sold for the Wii U is too optimistic.
My guess:
2015:
sep 200k
oct 170k
nov 500k
dec. 1.1kk
=> Wii U is at ~ 11.98 million or so.
2016:
jan -> sep sales much like the past 3 years , maybe abit lower, due to hype from NX soon launching ( lets say 1.3million).
Wii U is @13,3 million units sold or so.
oct =====> Nintendo NX launches, has good sales, Wii U sales drop alot compaired to other years this month.
Wii U keeps selling another 2-3years and ends up around 14,5 million or so.
How realistic is this? Not sure, but think its going to be closer than patcher is with his 20million prediction.