Regardless of what Switch 2 turns out to be, I'm already happy. I've been using the Switch to build up a fair collection (to the point that I refused to buy cheaper alternatives on GOG or Steam), so it's nice that I'll be able to bring it forward. Really happy that this includes NSO as well.
Of course it does exist. Usually Nintendo are working on ideas for the next console as soon as the current one is released. So I’m sure, at this late a stage they have at least a fully working Super Switch 2 mega X64 ultra or whatever it’s called.