We will see if the DLC packs will give Sw/Sh a second wave in sales, especially if TPCi continues marketing the games (via the anime, the card game, and the merch) and the upcoming content. It continued for Smash 4 and Ultimate. Plus, even though we assume there’s another set of Pokémon games coming, they haven’t officially announced it yet so if people are buying a Switch and who are interested in trying Pokemon, it’s gonna be either Lets Go or Sw/Sh for the time being.
Animal Crossing New Horizons is doing impressively well. I will not be surprised if it’s first recorded shipments from Nintendo’s upcoming financial report will show numbers similar to Pokemon, Smash, and MK8D.