No need to apologize for your English.
I see very little chance of NG/Switch 2/whatever selling more than Switch. Switch is at 131.25 million and counting. 150 million seems like a lock at this point. In the all-but-guaranteed situation where NG is a hybrid, 80 million units seems to be the floor, but the ceiling could be around 150 million or so. But that's why I said ceiling for the 150 million figure. It could probably outsell Wii and PS1 and very likely even the Game Boy+Game Boy Color. But I expect a clear drop from Switch.
NG will surely capitalize on momentum from Switch, but it will almost surely not seem as new as Switch. Some Switch owners won't ever get one, even though there will also be some people who get NG who never had a Switch.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 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
