RUMOR: Sony has acquired the rights for a Monster Hunter 5 release on PS4 in 2018. Update: confirmed that it is false rumour.

[KLXVER]

ktay95 said:
If it's not on Switch I will fucking rage. Nintendo finally have a good handheld for MonHun, they can't lose it now -_-

It will definitely be on both. No way in hell is Capcom making it a home console only game.