Some great ideas there!
Something that I'd love to add is about contrast in the hp/mp bars. Maybe it's just me because I have a very soft form of discromatopsy, but I'd love a higher contrast between "full hp/mp bar" and "not full". Most of the times when your bar is like 80% or like that I don't immediately notice. Would be useful for me!

Also, an interesting addition would be to do what users with windower have been doing for several years, that's TP and MP displayed for all alliance members, Pets included.

Last but not least, additional information in the equip/status screen. I'm not saying we should see every single stat in there, but atm we can only see attack and defense and that's a bit annoying. Would be lovely if we could see other stats as well. Attack, Accuracy, Defense, Ranged Attack, Ranged Accuracy, Magic Attack, Magic Accuracy and uhm... Magic Defense? Evasion too maybe.
Would be really lovely!

And also, why not updating the way Job Traits get listed?
If you have, say, Store TP V, you only see "Store TP" in the list. Why not making it listed as "Store TP V" instead? That way it would be easier to understand exactely when you get a new tier, instead of having people find it out with silly tests. I'm sure there's a lot of stuff not discovered there yet...