User blog comment:Kogath/Monster Hunter: World Discussion/@comment-25275196-20170819141152

Whatever the big blag elder dragon like monster seen in the end of the Wildspire Wastes trailer is, I don't think it's the final boss. It seems to be more like some kind of teaser. From what I remember, the final boss was always showcased at the end of the third trailer, but this is still only the second. I'd say that this will be either A new elder dragon that is not the final boss (Like Lao or Jhen), or the Flagship of this game.

I dunno though. Chances are I'm completely wrong.

Also, Mudsioth will be best monster.