User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-26953474-20121127222154

new weapon confirmed for MH4!! http://www.siliconera.com/2012/11/27/report-monster-hunter-4-weapon-teased-in-famitsu/

"The magazine showed a silhouette of a weapon with large three prongs. "

sounds like a trident to me.