Capcom would be stupid to make a low budget monster hunter game. They will want to make monster hunter better so they don't lose any fans. Unless nintendo start making powerful console again, it's hard to see another monster hunter for nintendo
Switch is powerful enough to have a version of whatever the PS4 receives, just downgraded enough to run it.As Capcom themselves said, it would be difficult to make World work on Switch, but not impossible.If they think it could sell there, and its obvious that it can, there will be interest for such a port.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.