1) A personal bank/vault system with easy access to, including a more streamlined approach to the interface without the incredible lag between loading menus.

2) Introduce gear that is specifically stated for a certain job. Str/Pie on gear for DRGs, Dex/Pie for BRDs, etc. The pieces would still work on multiple jobs, but isn't the most optimal slot. AKA, pieces for all jobs where there isn't a single wasted stat (such as evasion on DD gear. I understand how it "could" be useful, but ultimately in 99/100 scenarios, it isn't).

3) Get rid of crit potency. Crit should just do x2 damage.