Japan sales will be crazy but the West should have very good sales as well with Animal Crossing just coming out and Pokemon later this year and a few strong supporting titles like Mario & Luigi and Legend of Zelda.
Im curious to see what they have in store next year to keep mometum going. A small $20-40 price drop, maybe a redesign of the smaller version. I could see games like Yoshi's New Island, Advance Wars, Super Smash Bros, Kirby, Ice Climbers reboot, Pokemon Z, Dragon Quest XI, Resident Evil Revelations 2, Kid Icarus sequel releasing in the next 1-2 years.