It's really not that radical once you realize it's been done in the past. Multiple GameCube games were ported over to the Wii and re-branded New Play Control!! The Wii could already play the original versions of those games, thanks to backwards compatibility.
Lifetime Sales Predictions
Switch: 125 million (was 73, then 96, then 113 million)
PS5: 105 million Xbox Series S/X: 60 million
PS4: 122 mil (was 100 then 130 million) Xbox One: 50 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