At this point I'm starting to think MH Switch is most likely never happening.
It would make too much common sense, and when it comes to the Switch, Crapcom don't do common sense.
The rumors that concerned a Monster Hunter World announcement included a statement that Sony paid off Capcom to prevent new Monster Hunter games being made for Switch. Each passing month without a MH announcement for Switch adds more credibility to this rumor. That would also be by Monster Hunter World is impossible on Switch, according to Capcom. Not because of technological hurdles, but contractual ones.