I want raids. I like raids, I want more and more raids.
Make 5 raids, each incredibly difficult (actually require teamwork, impossible to solo) one for each different element. The Fire raid would give special Fire weapons (the best of which would be something like an upgraded EXuum), which in turn make the Ice raid easier because everything is vulnerable to fire. But make all the powerful weapons super hard to pull, like the drop rates in CITW right now. And make them that way from the beginning, don't make it easy then take it away from us later.
Also, I want to see Amrath expanded upon. MAKE US FIGHT THE FALLEN ARCHON!!!! Give us 2 raids for that, actually. 1 to fight the fallen Archon and the other one like the old tank and spank raids for the thing kept in the Dungeon on the Amrath island. Give demonic loot, stuff with curses and high dps with drawbacks. Sword that does as much dps against any other weapon in the game, but does greater vicious damage and increase damage taken by 5%? Mmmm smexy.
Then give us a 6 man quest where we have to fight off waves of the demon armies. Don't make it like DA though, make it so it doesn't end until we die. Then keep a record of who got the farthest per server. You KNOW that would make for some extreme competition among players which I think would liven up the game for a bit. Don't give it a difficulty, just make the waves get ever so stronger.