User blog comment:Kogath/Monster Hunter XX Discussion/@comment-20314792-20170204130747/@comment-27120688-20170205021814

^Those are the new end game monsters. They always are teased in the final commercial. Narkarkos and Gog both were. I'm talking about returning end game or variants/rares of previous species.

For example: Nobody knew in 4G that White Fatalis was returning, a G rank Crimson Fatalis Variant, a Brachydios Variant, a Gore Magala Variant, Rusted Kushala Daora, White Monoblos,  and Apex monsters existed until people played the game.