1. Style Lock from FFXI (basically free form glamour anything you want, regardless of class)
2. BGM changer (use orchestrion rolls to alter in-game zone themes, battle themes, dungeon Themes etc)
3. Customizable Battle Companion (Allow Retainers be an open world companion akin to your chocobo. Also allow to bring them in a dungeon)
4. Class specific weekly/daily challenge logs that nets you a good chunk of exp by successfully performing associated tasks in combat, or basically expand hunting logs for all classes while giving synced exp gain rather than fixed.