Nintendo series most ready to be a launch game, but hasn't before?

Board 8

let's go was pretty much an anti-experiment, they were hedging their bets by maximising the casual appeal (from go players and anime fans) so that feels like a pretty bad example compared to "x and y sequel for legends arceus players"

anyway i was caught out, i was rewriting the narrative of the topic to suggest that the choice would be THE launch title, the flagship