Some changes I think at least one person will appreciate:
-Summons no longer have CT.
-Ramuh now inflicts Immobilize rather than Silence.
-Ifrit is back, Phoenix replaces Carbuncle.
-Ghosts, Shades, and Revenants have lost Teleport, gained Warp.
-Ghosts have gained Jinx.
-Jinx should hopefully be more effective now.
-Skeletal Mages have lost Dark and gained Gravity Well.
-Bomb Kings have lost Flamethrower and gained Pyrophobia.
-Frog has had a JP boost and slight CT increase.
-Sages have lost Quick and Delay, and gain Flare Star and an as-of-yet undetermined ability (likely to be a nerfed version of Olan's Celestial Stasis that hits everyone- need feedback)
-Some battles now have quirks to them, such as being ambushed at Lionel Gate, Poisoned at Cuchulainn, losing Faith at Belias, etc.
-The recruitable Lucavi have regained their debuff resistances.