FF XIV has covered the gamut of weapons so far:

*Broadsword/Shield
*Great Axe
*Zweihander
*Crook
*Staff
*Planisphere
*Shotgun
*Bow
*Lance/Trident/Halberd
*Cesti/Katars
*Grimoire
*Rapier
*Katana/Dagger
*Tachi

Seeing that each job has a unique weapon, what weapons remain for future jobs ?