Marketing a product as major as a game console is a process that absolutely takes more than 5 months. There are a ton of necessary things that they can’t or at the very least probably shouldn’t do before they actually announce the thing. Marketing campaigns, retailer deals, shipping to said...
They’d have to announce, market, and launch an entire system within 5 months if they wanted TotK to remain relevant enough to justify it being a launch title. Otherwise they would have to port the game, which would probably hamper sales.
I do think that a new console is coming much sooner than...