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 people realize, but not soon enough that TotK is going to be a launch title. A new 3D Mario is much more likely for a launch title seeing as how we haven’t had one in 6 years and they still haven’t announced a new one. Metroid Prime 4 is also a reasonable possibility, though it might not be a heavy enough hitter to be the headline title and could be pushed back to a month or so later.
I do think that a new console is coming much sooner than people realize, but not soon enough that TotK is going to be a launch title. A new 3D Mario is much more likely for a launch title seeing as how we haven’t had one in 6 years and they still haven’t announced a new one. Metroid Prime 4 is also a reasonable possibility, though it might not be a heavy enough hitter to be the headline title and could be pushed back to a month or so later.