se7en7thre3 on 29 October 2016
Wii U after launch and 1st calendar yr hit 5.86 mil, 3DS launch to 12/31 hit 15 mil . A lot depends on price & sw available- but just basing off hype level and overall product desirability, I'd safely predict somewhere in between, at least 8-9 mil by 12-31.
https://en.wikipedia.org/wiki/Nintendo_3DS_sales
https://en.wikipedia.org/wiki/Wii_U#Sales
