There has been some inflation in most franchises since the Switch released, so I think we will see the same for Metroid with a chance of reaching 5 million lifetime sales.
Dread which is a much lesser game in Scope (not quality) is the best ever selling metroid game on one console. The remake of Metroid Prime sold over 1 mn.. so I wouldn't be surprised if we get to 3 million by end of March but probably won't sell a whole lot more after. The Metroid Direct though will definitely tell how hyped people will be for this and whether this actually is the game that raises the profile of the series







