1) Raid Roulette, and easy-mode raids (to allow everybody to see the story)
2) MSQ ! I want to see how story ends right now, not in 2030 ! ^^
3) More relevant crafts. Crafted equipment should be better than the stuff you get from doing tomestomes. Or maybe being able to change your esoteric equipment to HQ esoteric using your crafter classes and some rare items. I don't know. I just want crafter to be useful.
4) SCH and SUM as separated classes, or second job for every class.
5) Blitzball in Golden Saucer