We'll see. people were saying the same thing with 3ds, wait till pokemon and animal crossing, after it was doing amazing its first 2 years.
The thing is... Switch is easily outselling 3DS in NA launch aligned. Keep in mind 3DS' first year was already its best there too. You can't really compared them... 3DS' stronghold was Japan.
Bet with Teeqoz for 2 weeks of avatar and sig control that Super Mario Odyssey would ship more than 7m on its first 2 months. The game shipped 9.07m, so I won