Japan Sales week 19, May 06 - 12 2019, Famitsu

[zygote]

Bofferbrauer2 said:

Well, PS3, and possibly even the Wii with stellar sales, will probably fall this year.

After that, we probably will have to wait until 2021-22 for GBA, SNES, PS1, NES, PSP and possibly PS2 to fall to the Switch. Might leg out to overtake the 3DS in the end, though GB and DS seem too far to reach for the Switch.

Or with the help of Pokemon, Animal Crossing, and mini, Switch falls in the 17k range this year, then next year it goes to 25k due to the bump in market penetration, word of mouth, and increasing library, then it legs out around that 30 something range. 

Too early to tell with PS5 hitting next year and the revisions coming.