- Seasons that have more than a mere aesthetic impact on the game (eg. certain weather becomes more likely = certain mobs are more likely to appear = certain magic is more powerful during this weather, etc).
- Improved materia system (I wish I could be more constructive but it's difficult to know exactly how this should work).
- Fun and worthwhile open-world content.
- Easy to use and reliable content finder which allows me to party up with the specific friends from other servers that I might want to play with.
- Less reason to complain about lag or latency - and I'm not just talking about during instanced fights, I mean in general.
- Lots of exploration
- Auction House
- Lots of lore
- FFXII-styled bestiary with FFXII-styled unlockable lore
- Amazing housing/furniture system
- The return of curious creatures
- NPC's that are capable of moving around, perhaps even going home and perhaps even going to bed (if they are needed 24/7, have multiple NPCs cover the requirement in 'shifts').
- /dance2, /dance3, /dance4/, /dance5! SOMETIMES A GALKA JUST HAS TO DANCE ;_; The only dance I have is pathetic. /happy is far better as a dance. xD
- The ability to deliver linkpearls through the mail system.
- Better player graphics than we have seen in the live letter.

Oh, I could go on forever, this is too easy and fun to just spout out random crap.