If they're announcing next year they must surely know that already, I don't understand why they don't just say so. They seem to want the possibility of a Switch 2 reveal to hang over Nov/December for no reason, unless they are planning some thing like a reveal at the TGAs or something.
They could easily just say:
"As an update to our statement in May regarding the Switch successor, will share more details in the new year keeping with our previous time line. This fall we will focus on the existing Switch platform. Now please enjoy this Zelda: EoW or Mario Party or Mario & Luigi trailer launching this holiday season" etc. etc.