- Animate the battle backgrounds, characters and monsters.
- Redo the music! And do it right!
- Make a greyed-out entry appear in Gau's Rages menu when you've encountered an enemy, but haven't learnt their Rage yet.
- Make the Rages more interesting somehow...90% of them are Attack/Special.
- Voice-acted cutscenes are becoming the norm these days, and I welcome our vocal-chord-vibrating overlords! But include cutscenes with more action, as well. There isn't enough action in the cutscenes for FF4's remake.
- Mostly unrelated: Make a prequel that tell's Shadow's backstory.