Wow, this is not the Gunlance that I used to know before. I hope Lance could get some SWAG move.
To be honest, the Monster Hunter: Wild should be called Monster Hunter: Ass-Drilling because there are so many Ass-Drilling Moveset in the new weapons
Two Frontier moves, Sideshelling and spread. There's also Perfect Guard like Lance now, so we can hope for Reflect Lance?
In Frontier there's a skill named Reflect that as the name implies, reflects damage to the monster when you block, and Reflect Lance was exceptional against multihit moves when using the Extreme Guard (I forgot the proper name).