I would make some of the best gear come from world bosses. It's something for guilds to fight over instead of random fighting and pvp dodging with channels and safe zones.
I'd like to list a couple of things that would make my day.
1. Optional up-dos. I know the hair clips the collars, but so do they clip the weapons and I'm not seeing any "up-do" weapon system.
2. Points based loot system. Kill boss 10 times, get 1 armor. It makes you play longer, but does not make it unfair when a random person lots on the same item you have been running 40 times for.
3. Obviously optional Elin censorship. Since I'm like the Koreans, mature enough to handle it.
If I had to change one thing...
It would be either fixing the UI lag issues, cull distance or pvp rewards.
Torn between the 3 :(
I would make the world like 100 times bigger and travel take much longer.