We need a 3rd range class, i present to you the launcher aka HEAVY GUNNER

[Seraphor]

ANOTHER gun class? I doubt it.

They like to base new jobs around distinctive weapons, and the one thing FFXIV is really lacking is some kind of throwing weapon.
I expect the next ranged physical class to use chakrams/boomerangs, or maybe a Blaster Edge.

[briarth0rn]

ANOTHER gun class? I doubt it.

We have like five sword jobs. I think we could do just fine with a second gun job, or even third if you count Gunbreaker. Personally, I'd love to see something like Corsair from 11, perhaps with a pair of handguns. It'd fit in perfectly with Limsa and the musketeer's guild that already exists there.

I think something big and bulky like the OP posted wouldn't really work based mostly on how animated that weapon is. Most animation in this game comes from the character models, we don't really have fancy transforming weapons outside of a couple unique unsheathing animations, or 1 or 2 machinist weapons that have a unique reload animation.