Monster Hunter has been stuck in time since the PSP finished, there was no positive aspect gameplay wise to the game going onto 3DS. Be it Switch or PS4, this will surely finally be the time Capcom start putting effort into the franchise again in several years.
They are such a shitshow of a company now though, fucking shame what happened with them. Their games don't seem to have a decent budget anymore and Capcom simply aren't good at developing games any longer.
I most certainly would take a proper Monster Hunter on PS4 but fuck knows when that happens. A MH made ground up for Switch is the best we can expect and considering that piece of shit in plastic form that is 3DS will be around for some time, a proper Switch MH will be a long ways away.