They're using placeholders as audio for now. You can hear Geralt's combat exclamations from the first game @ 4:52, for example.
EDIT: Answer me this. I don't remember the flashing sword icon (indicating a chain) remaining lit when you moved your cursor off the the enemy in the original game, yet this time it stays aflame regardless of cursor position.
Am I remembering things wrong? If not, that's (strangely enough) a big improvement over the first game.
Yeah, that dragon part was like the visually least impressive stuff in that video. It's just footage from an alpha version tho. Their new day/night cycle tech looks great even at this early stage in development.
As far as we know, that was a dispute between them and the developer it was outsourced to. A fairly small developer like CD Projekt probably can't afford to keep throwing money at it until it happens. I wouldn't be suprised to see Witcher 2 on consoles.
Doesn't say anything about the game. Although I'm pretty excited anyways since I liked a lot of features in the first game, but they should really hype other things than QTE:s, graphics and crowds that reacts to some actions.
They really should redesign the combat, the focus on potions was great but timing attacks was lame. And less combat overall please, must every RPG be filled with poor encounters wherever you turn.