Don't see it happening. PS2 had a lot of advantages. As it was declining in the major markets, a lot of new markets were opening it. It also was so dominant during its gen that developers kept supporting it for quite a while after its launch. Also, Sony wanted to keep pushing the PS2 after the PS3 was released, perhaps due to overconfidence. Nowadays, it seems like companies are much more interested in getting people to buy their newer products, which is why we didn't see a major drop in price or significant bundles for the PS4 when the PS5 launched.
Unless the Switch has very significant revisions that are all counted together for sales purposes (such as Gameboy/Gameboy Color) I don't see the Switch hitting PS2 numbers. But, the fact that it doesn't seem totally insane is pretty good for the Switch.







