Although the development might prove difficult, I would like to see these Eberron races added to the game:
Shifters are a race of humanoids with animal characteristics. They descend from lycanthropes (such as werewolves) and have the ability to partially change form in order to embrace their animal aspect. In addition to +2 Dex and -2 Int and Cha the Shifter gains traits that grant combat bonuses in a manner similar to a Barbarian’s Rage. For example, a Longstride Shifter gains a +2 bonus to Dexterity and a +10 speed increase while Shifting. A Shifter may Shift once per day for 3 + Con mod rounds. Taking special Shifter Feats increases both the number of times per day and length of the transformations.
Changelings are humanoids with moderate shapeshifting ability who can assume the form of other similarly sized humanoids. With a +2 bonus to Bluff, Intimidate, and Sense Motive along with Speak Language as a permanent class skill this really is the ultimate infiltrator.
The Kalashtar are a combination of a dream spirit and human soul. They gain a power point per character level and a few minor dream related abilities. +2 Bluff, Diplomacy, Intimidate, +2 vs mind affecting abilities, Mindlink 1x/day, +2 to Disguise checks to appear Human.
I'm not sure how they would translate to the DDO world, but I'd love to see more options with regards to race. Esecially if we get Monks, Druids, and Psionic classes, these races would seem to fit. I can imagine Shifter Monks, Changeling Druids, and Kalashtar Psionics and I think it would be a great addition to DDO.