Hey there,
one thing I really liked in the older Infinity Engine games was to give my characters custom voice sets, since they are an excellent way to customize and identify with your character. Adding new hair styles or faces to the game is kinda pointless, when your character sounds like the most generic <enter race here> being on Faerun, respectively when you're not content HOW your alter ego actually sounds like. Point speaking, the current EA voice sets don't allow much leeway for certain types of characters (evil wizard, Seductress, and so on...), and while I believe that there will be more sets at the release, it'd be nice to have an extra option to add more to the table. Considering that the MC has no voiced lines in dialogues, and already has sound bits to acknowledge certain commands, a feature like that shouldn't be that hard to implement. Just like in the older games, an option to drag and drop sound sets (a set of .wav, mp3 files) into folders to chose from would be great.
Thanks for reading!