I don't think people who are selling the "new model in 2022" angle are going to have much success with that hype train anymore. People have had enough of being hyped up and it leading to nothing.
2023 maybe? 2024 more likely. Nintendo doesn't give a crap about when enthusiasts think they should launch anything or what their inside info is saying.
I honestly could not care less about a hype train, I'm just following where all the evidence is leading. Kopite's info is probably as solid as any spec info can be, if he has access to code names and details now I don't think it's terribly logical for this chip to not be seen for over two years, since the design is finalized and it's likely beginning production.
People aren't pulling the spec details out of their assess, it's very likely there are some third parties aware of the plans.