User blog comment:Kogath/Monster Hunter X Discussion/@comment-1921299-20150921231652/@comment-1780011-20150923073602

It all depends on whether this is the last 4th gen game, if there's no g-rank then that means Cross Ultimate is probably on the way and we're pretty much guaranteed subspecies for the elite 4 (and the owl). If this is the last 4th gen game then it's less likely unless they return in the next game and get subspecies like Basarios + Kirin did in 4.