The most urgent features I think DDO should adopt and develop are -
More starting areas - Every character we make go through the same adventures, adding some variation right at the start of the game after the character is created will draw more players to the game.
More feats and skill uses (from supplementery books) - Feats are the core of the game and what makes it so unique among the many MMOs, DDO should preserve this feature and make it strive, to do so DDO should reach out of the PHB because there are hundreds of feats out there. between you and me after you buy supplement books you barely look at the feats from the PHB
Basic races - The gnome, Half orc and tiefling are in my opinion the basic races in Ebberon and we should at least get to play them before going into more complicated features.
Less urgent features I think DDO should implent in the future are -
Prestige Classes - They are a foundamental part of any DnD campaign and so should they be in DDO.
Class' and Class Abilities' Variants - Let's be honest, we don't like the idea of every class as initially presented and we welcome variants very much for the diversity they put in our game, every DnD player will agree that variants are helpful and are not unsavoury.
More non-monstrous races and more classes - Altough the basic races are much more important and we have many classes, having more variety at character creation is what makes a game shine.
(I would not object to playing a scout or a druid)
Ideas for the far future (a.k.a jsut being optimistic about the promising future of DDO) -
The Evil allignment - Yes, it is DnD after all, and like DnD (well unlike what the PHB presents us with that is) we should be able to play the evil doers once in a while, altough such mechanic should prove hard to achieve because both reward and concept of such a player's agenda and gameplay should be precalculated and developed and such a thing is hard to make. I am sure its not simple to implent such a thing into an ongoing MMORPG but to think of the impact such an update would have on the game is no doubt Good.
Players actions affecting the world - While such a feature is hardly an idea a mere player could have the nerve to ask about (nor suggest) I think it is worth mentioning, also this feature is said to be implented in another MMORPG and it is thrilling thing to say the least.
One time events and Artifacts - Are an amazing thing of legend to be told and to be sought and maybe even.. to be shuffled...? O.o
Sub and Monstrous races - While the need for mostrous races is debatable, sub races' are not, sub races are a fantastic thing, and im sure that if such a feature would be implented I forsee we would have an entire game "reroll".
I would like to point out this is my list of ideas and everything written here is my (sincere) own opinion.
BV