The Switch is not looking to be like the Wii's 2011 and onward at all. We have lots of first-party games confirmed for 2022, and third-party games will continue to come to the Switch in large numbers. AAA titles will not be a big thing, but they haven't been at all during the Switch's lifespan. For every Witcher 3 that pushes the Switch to its absolute limits, we have around 100 smaller third-party games (of varying quality).
Besides some similarities like not being a massive hardware leap from their home console predecessors and selling very high numbers, the Switch and Wii are quite different. The Switch is currently leading the Wii by about 4.5 million hardware units (see the June 2021 numbers).
The AAA third-party titles of the day have not consistently come to a Nintendo console since the SNES, and it won't ever happen again. The N64 and GameCube were held back by their game formats (cartridge and mini DVD). Wii, Wii U, and Switch have been held back by weak specs.
If you want more than a handful of AAA third-party games each year, you get a PC, PlayStation, or Xbox.
Lifetime Sales Predictions
Switch: 151 million (was 73, then 96, then 113 million, then 125 million, then 144 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 57 million (was 60 million, then 67 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima