I'm beginning to think Switch's 2021-2023 will mirror Wii's 2011-2012.

[Kakadu18]

SKMBlake said:

Illusion said:

The big difference between the Switches 2021 and the Wii's 2011 and the Gamecube's 2005, is that we have no information on new hardware coming from Nintendo or even a rumored codename at this point. 

Pretty much this.

And Switch is still in its 3rd year, 4th year won't start until 2 months from now

In March 2021 the 5th year of the Switch started, not the 4th.