User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-26953474-20140214203303/@comment-184612-20140214204533

They straight up said it was for a new monster, and a new species at that.

Also, those weren't concepts for the Insect Rod. They were just other weapon concepts. There's a ton of interesting ones they haven't used yet (still waiting for whip).