That's stretching even by your standards, tbone. XD
I do expect it to be at around 6.5-7 million, minimum, and become the Switch's #1 best selling game in the process, passing Breath of the Wild, which should be around 6 million by that point as well.
But 10 million? When the best selling 3D Mario game, Galaxy 1, took 10 years to get to 12.76 million?
Yeah, I'm going to lump this comfortably in the "Impossible" category.
Hardware Comparison Threads:
Current Thread
Is Hardware Getting TOO Powerful?
Older Threads:
PlayStation/Xbox/Switch: 2022 Edition
PlayStation/Xbox/Switch Hardware Battle: 2021 Edition!
PlayStation 4/Xbox One/Nintendo Switch: 2019 vs. 2020
PlayStation 4/Xbox One/Nintendo Switch: 2018 vs. 2019
PlayStation 4/Xbox One/Nintendo Switch: 2017 vs. 2018
PlayStation 4: 2015 vs. 2016 vs. 2017