User blog comment:Kogath/Monster Hunter XX Discussion/@comment-31153175-20170130084837/@comment-2194133-20170131013545

" Will they bring Deviants into the main questlines for G rank?"

Have they said anything as to how Massacre Diablos will be integrated into the game's narrative? If I remember correctly most if not all the deviants currently in Gen/X are simply given to the hunter as a Special Permit unlock after beating the base quest (i.e. Hellblade Galvenus after High Rank Glavenus). There isn't any accompanying dialogue from an NPC or a respective Villager Request for these Deviant quests.

If they are treating Massacre Diablos as a flagship I doubt they would ignore it completely in the "story" portion of the game. They only way I can see them acknowledging Deviant Diablos however is if they had it as an urgent or something of the like in either Village High Rank or G-Rank. Doing so, however, would be completely revising the current Deviant quest format. Otherwise, Massacre Diablos will join Brachydios as one of the most understated Flagships in its respective main series title.

Regardless of what they do, in the second trailer we see Dreadqueen Rathian in the Ruined Ridge so that at the very least confirms additional deviant quests from what is currently in MH Gen/X