My suggestions:
ip limit 2 ( 1 main char, 1 goldbot/stall)
Balance EU and CHN races, put pain quota buffs for chineses can have partys, make a good CD to many EU buffs and nerf them for a fair PvP wars, well try make it till all see its good enought.
Try make Dungeons for drop especial items, with maps who still not using... and put time limit for Dgs like 4 hours, and idk if u already have but put daily quests to ppl want play every day
sry for my english btw .-.