User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-174.52.104.227-20120921061956

Since it says there will a bit of a deeper story this time around, and the "infected" Tigrex, maybe there will a plot with Goa Magara spreading a virus around causing monsters to rampage and attack travelling caravans. Goa Magara could be like a rabies spreading monster, and things would get worse,(escalating to a plague) unless its stopped.