User blog comment:Kogath/Monster Hunter XX Discussion/@comment-6050823-20170316041025/@comment-5020152-20170316190253

The G3 Urgent would most likely be the final boss, based on what 3U and 4U have done in the past. Lao-Shan would be more suited to G2 or some random non-Key Quest, because it's just cruel to make something that boring a required quest.