I'm not sure how this will do. So far, Nintendo's most successful endeavors have been their core games. Labo was a flop. Nintendo is certainty going in on it with Brain Age and Ring Fit. I don't see this being the success it was with the DS. Wether it can be a moderate success or another flop will be what determines the direction of these titles.
Still, I wonder what Nintendo has. These games can't be that difficult to make. And we haven't go much from them in 2018 and 2019 (internal developers I mean). So whats 2020 going to be?
How many times are people going to say this? 1.5 million is not a flop. Yeah, it didn't blow up, but it's far from a failure.