I'd like to see a few casual, long-term quests such as the 'Clay Tablet' quest in FFXI.
Make the rewards for these kind of quests novel as well.
I'd prefer things like:
A unique piece of furniture for your house, such as a painting, mirror, or wall map.
A pass that allows you to use ferries or airships for a discount price
A bracelet that reduces all your stats by 15, but slightly reduces your detection by mobs.
A music box that plays an alternate music track while you are crafting or riding a chocobo.