With Switch continuing the good sales pace in Japan, I can see it outselling it there maybe by the year's end or early next year.
Worldwide though is still questionable. It surely continued to sell better than expected thus far.

I may be wrong but I think the only market the NS will trail behind the DS by the end is in Europe. 

But the fact a much pricier device has a chance to surpass the everlasting DS in Japan is already amazing as it is.

ShadowLink93 said: It is inevitable.... Credit to Hiska-kun

Kinda crazy that the Switch has barely lost any momentum since the launch of the Lite in Sept '19 (around W136). It never quite hit the crazy slope of the DS in its years 2 & 3, but it's far and away the best-selling console at this point in its life among those in this chart.  DS, Wii, and GBA were essentially done by this point.

I've long felt the Switch was destined to sell around 35M in Japan, but even that may end up being too conservative.

Didn’t the first one release digitally way earlier?

Seems that Japan is the Only Country/Region where the Mario OLED made any impact at all.

Normally the easy prediction would be lower than 2022 but the Switch has been beating expectations this year in Japan so it having a bit better holiday season than that to reach 4.5m would be a fitting end to the year.

How will the slim model help sales when it's more expensive than the current models? Also, Spider Man won't make much of an impact in Japan.

King Switch ! Those numbers are insane

Nintendo better wait until SUMMER 2025 for the succesor

Just release New DK + Metroid + New Pokémon let’s go series in 2024 and get that 165 million units

Oook.

I know we can be enthusiastic about the current Switch performance and how it could trend favorably in the coming weeks.

But no, your scenario is just not happening lol.

Well, there was a cliff, Switch just climbed up it instead of falling off it.