Nah Switch 2 ain't that close. There would be no reason at all for them to release it in 2023. Remember Switch is still a monster (going to do over 20m this year), and next year it'll probably still do 17m or so and there's still several major Switch games coming.
Spring 2024 is definitely possible for a Switch 2 launch, but Holiday 2024 is also possible. I'm guessing they'll see how Switch does through most of 2023 and then decide. Probably earliest we'll get a Switch 2 announcement is late 2023, but only if Switch sales really slow down next year. I could see them doing a late Spring 2024 Switch 2 launch (like May) though and waiting until January 2024 to announce it to not hurt Switch's final big holiday when presumably we'll get major titles like a 2D Mario and Metroid Prime 4. That seems more likely than an early Spring 2024 launch and therefore needing to announce it before the 2023 holidays.
Anyway, glad to see order has been restored in Japan after the bizarre week of PS5 winning last week haha. PS5 back to where it should be in the teens and Switch back to high 5 digits. Two weeks until Pokemon, when Switch will start doing 150k+ each week thru end of the year. PS5 will at least break a million this year so good for them.