I would honestly love a Weapons Pack for every single job inspired by iconic weapons wielded by Final Fantasy characters of the past. Especially if it updated with new weapons every time new jobs were added.

PLD: Wild Rose Blade (1h Sword) and Wild Rose Coronet (1h Shield) (Inspired by Firion's Amano art)
WAR: Axe of Chaos (2h Axe) (Inspired by Garland's weapon in Axe form from Dissidia)
DRK: Buster Sword (2h Sword) (Inspired by Cloud's initial weapon from FFVII)

WHM: Staff of the Fayth (2h WHM Staff) (Inspired by Yuna's initial weapon from FFX)
SCH: Tome of the Whale (SCH Grimoire) (Inspired by Dagger's ultimate weapon "Whale Whisker" from FFIX)
AST: Gambler's Astrolabe (AST Astrolabe) (Inspired by Setzer's design from FFVI)

MNK: Machina Maulers (MNK Weapon) (Inspired by Rikku's Godhand from FFX)
DRG: Kain's Lance (DRG Spear) (Inspired by Kain's Holy Dragoon design from FFIV: The After Years and Dissidia Duodecim)
NIN: Knives of the Chicken (Inspired by the Chicken Knife weapon from FFV, used by Gilgamesh in Dissidia Duodecim)

BLM: Mateus's Malice (Staff inspired by The Emperor's staff as shown in Dissidia)
SMN: Rydia's Reawakening (SMN Grimoire) (Design inspired by Rydia's character design from FFIV)

BRD: Forlorn Bow (BRD Bow) (Design inspired by Edward's character design from FFIV)
MCH: Cerberus Rifle (MCH Gun) (Design inspired by Vincent's rifle from FFVII: Dirge of Cerberus)

Though if we're going for villain attire, how about an Imperial Majesty set?