As of these numbers, just 2.3 million left til Switch passes 3DS.
In other words, by now, it probably already has.
Was just about to say that. It probably has, or it's getting very close. Switch will pass GBA in 2021, that's a given. Next is Xbox 360 and PS3, which is also a given for next year. Passing the Wii is possible next year, but I think that will be in Q1 2022.
Lifetime Sales Predictions
Switch: 144 million (was 73, then 96, then 113 million, then 125 million)
PS5: 105 million Xbox Series S/X: 60 million
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima