I think that more races will be great! and the Shifter its one =D
The druid its on the game, why not a race that can shift too?
It has
+2 Dexterity, -2 Intelligence, -2 Charisma
You can Shift
Shifting gives you a +2 bonus to one of your physical abilities scores. It lasts only a few rounds (like a barbarian's rage), but it lasts one additional round per Shifter racial feat you select.
And theres a lot of shifter feats, that combine with the form you choose.