It's too early to make much of an informed assessment, but based on just gut instinct:
- I'm also not convinced Xbox Series will outsell Xbox One. It's possible, but I feel like all its games also being on PC will continue to dilute their hardware brand.
- PS5 I think will sell on par with PS4 as I don't see any substantial reason for PS4 owners to jump ship/brand.
- Switch will sell in between Gameboy and PS2/DS, depending on how long it's supported for and how well.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.