We will see what it will look like in the full game. I don't expect everything to be fully voiced (though I'd like to), but I hope the character will speak more than once every 20 hours.
Nothing kills dialogues like being the only person with no sound in games. In that respect DA:I was almost perfect. I also never understand the argument about immersion, I would say that the lack of sound kills it much more.
The ME series would never be so good if Shepard didn't have a voice.
