Ah delicious RDM tears...

Seriously though, I think we can safely say that we're at the point where no further major tweaks are necessary, save for perhaps a few cases;

RDM: I see a lot of people crying about Cure V, and when I hear it it sends off alarm bells in my head screaming out "PINK MAGE ONRY!!!" and the return of lolWHM. I don't see how these 2 jobs could get Cure V at this point with screwing over WHM outside of Abyssea once more. Rather, why not give RDM better enfeebling spells - Slow 3, Dia 4, Gravity/Silence II etc...

THF: Make treasure hunter actually work? Really sick of landing TH10+ and getting jack squat...

PLD: PLD is actually largely OK (for the moment) outside of Abyssea surprisingly enough, but that could very well change as Voidwatch & the rest of endgame evolves. As others have suggested, changing Cover to a job trait and perhaps making Sentinel 3 minutes would go a long ways towards fixing this job once & for all.

DRK: Change Insurgency to a crit WS (or failing that Quietus I suppose) problem solved >_>b

BST: The new jugs have been a huge success, and things are pretty good for BST. It does kind of suck however that Charm is basically a forgotten ability at this point.

RNG: So, I believe SE already had the fix for this job planned but they scrapped it for some reason I can't begin to fathom. Implement that enmity reduction based on range and you fix a lot of RNG's woes. The job doesn't need more firepower, it needs more ways to stay alive. Jishnu's Radiance + Dead Aim sure isn't helping in that regard.

NIN: The only remaining issue with NIN is still Shuriken. They're actually quite pointless now given the DPS on the newer katana, and even if SE gives us new ones they'd have to make them cost-effective unlike all the previous ones.

DRG: DRG's in a pretty good place now I'd say. The wyvern still feels a little too fragile though.

SMN: SMN's always been the red-headed step child of this game. I'm not even sure what SE could do at this point that wouldn't result in making the job too good. I do think that summoning skill with relation to avatar performance (HP, attack, def etc) and BP timers ought to be addressed however. And please, remove the 15% damage penalty on Avatar's Favor. You finally gave us a tool to encourage keeping avatars out, but then include a rather back-handed nerf to their damage which is already pitiful in most cases.