As for actual gameplay, from what i have seen it's the same old formula. The combat looks the same (though more arcade as in DA2), but that is not a bad thing, since it was pretty good. The dialogue wheel will have, as expected, short lines with being able to choose an asshole,neutral,good type of response. On top of that, they put additional lines above the choice, so to inform you what the choice is going to accomplish. It's all pretty hilarious, since ingame dialogue writing is now somewhat akin to writing instructions on a product. So if you expect some VTMB type of dialogues - forget it. The good thing is that they did not include the terrible recovery system, now you will at least have to plan your journeys and battles in advance, since the only way to heal up is camping and potions. Of course it was the same in the first part, but they are promoting it as an innovation, as they are the part about being able to not go to certain troubled areas, which will probably leave them devastated, or some such shit.
Oh, and the main character is voiced, but they do let you choose your race, as they did in the first part. So now the question is - will your dwarf sound like shepard? That's about as much as i know