User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-5633664-20120830081709/@comment-4212769-20120831120240

It IS an old concept art. It was one of the earlier Barioth concepts. The weapon was a concept, too and now gets to be introduced. Kinda late, but who cares?

I'm 100% sure that ths isn't a new monster.