But probably stronger than either of those on it's own. So it just needs another big release during that time to get similar results to last year.
Speaking of which, how do the Mario & Sonic at the Olympic games series fare in Japan? Could they bring in at least some of the needed boost to equal last year's sales? How about Luigi's Mansion?
I understand neither of those two is as big as a Pokemon or Smash title, but couldn't they reach a similar effect, when taken together? Especially since I expect the baseline to be somewhat higher from the game releases in late summer.
Luigi's Mansion is a series with growth potential in Japan and its ambiguous release window has been narrowed down from 2019 to Q4 2019, so it's now supposed to release in proximity to Sword/Shield. Pokémon: Let's Go didn't do hot numbers in Japan, so LM3 can match that. Last year's Q4 also had Super Mario Party which sold steadily and it's doubtful that Mario & Sonic can match that, simply because the Sonic IP has hardly any pull in Japan.
In summary, I'd put it like this:
Super Smash Bros. Ultimate > Pokémon Sword/Shield
Luigi's Mansion 3 > Pokémon: Let's Go, Evee/Pikachu!
Super Mario Party > Mario & Sonic at the Olympic Games
With LM3 in the same quarter, the lineup is more evenly matched and there's only a small advantage for 2018. Still, this was the scenario without price cut and revision, so a one year older Switch at the original price makes the hardware itself pose a challenge for sales. The more probable scenario is that there will be at least either a price cut or revision, and that makes a year over year comparison favorable for 2019 anyway, regardless of the launch month of LM3.