I wonder if there's a chance a MH game announced at TGS or a Capcom event instead of a Direct could be a multiplat one, including Switch.
Mind you, that is only my opinion and thoughts, but i don't see them making a "regular" MH game (World gameplay or older gen gameplay) that targets Switch mutliplatform. They could continue making content for World rather than that. Probably also cheaper than the costs of the up-dev for a Switch targeted one.
Really, if it's a *full* multiplatform game, it's probably a spin-off like Stories.
Though with the forecast they've made this year, they either massively overestimated what such a game would sell, or there's something else.