I have too things I would want to see added to DDO.
1. In the Monster Manual, the account wide part, I would like to see the hunter achievements added to those that do not have them.
Then add a new book, just to keep track of those hunter Achievements.
In that book, for every few Hunters completed, have a prize, like cool stuff.
This would give people a good reason to go places and do dungeons they might not normally do.
2. Add other Achievements, a new set of books for those. Like, smash 1000 crates, wave at a certain NPC, dance on a certain building, and etc etc etc.
Have the first book free, say with 20 Achievements. Then add more books to sell, with say 40 Acheivements each.
For prizes, have a points system, say 1 point for easy ones, 3 for hard, etc.
Turn the points in for spins on a new wheel (like the daily roll, but with better stuff, or add things to the daily roll, and use that).
The amount of Achievements that could be created are endless.
I think both of these would add lots of fun to the game.