I'm probably going to repeat a ton of things other's mentioned, but if we don't suggest enough, well you know..

Our Relic's need a Weapon Skill for our class/job.

We need new job/classes.
Dark Knight (Please keep this job as DPS)
Thief (call it what ever you want rouge, assassin. proper Sub Job (Ninja ))
Samurai (You already gave us Helmets, Ronin sounds nice, why not?)
Our Beast Masters want their Beast Master!

I agree that our class armors should look different from the rest of the classes/jobs.
The Artifacts are perfect, but the rest of the gear could use a little more effort to make the gear stand out from the rest, for example PLD and WAR use the exact same Armor.(Excluding AF). Glamour work's but it's really nothing to special.

My main job and only job is Paladin here on XIV, i'm more of a DPS. On XI i was Dark Night, actually i liked just about every job on XI but maily DPS. Ninja was great for mission, quests... anyways... great game.