I say 10-11 million depending on how many they sell this holiday
And 51 million 3ds again, depending how many they sell this holiday cause until the n3ds gets launched in the west, I think the 3ds sells will be low after the holidays are over
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850