Probably been mentioned already, but I'm not going to read through 135 responses....
New Guild Achievements!!
Personal Achievements!!
More item upgrades!!
More PvP Sets!!
Improved Chests!!
A new challenge, something to keep us occupied. I'm nearing me second year in this game, and I'm EXTREMELY bored. Power leveling, yeah sure.... but after awhile it gets boring. I tried SE hunting, but... it.... uhhh... didn't work out... put it simply.... Titan hunting!! WOOO!! Fun! But, the medal is to much, AND you need good internet to be able to keep up. I want something like achievements to go for, more upgrades to strive for. I want something new.
I would also like the ability to create a guild "Building" on the map! Kinda like a titan would appear, accept its a guild. You could go inside, and explore, they could spawn weak creatures that wouldn't count towards medals and achievements in the guild! There could be portal in the guild, and anything you cows can come up with.