Guess combat is done then : /
Combat, alchemy, the map size, dialogues. Yep.
Though we should remember that anything we've seen so far regarding combat and alchemy is from a build that wasn't up to date even when the footage was released, let alone at December 2014. So these things could have gone some changes. Then again, while it's a possibility, I don't think combat will be too different from what we've seen, if at all.
Also, I know it's PR talk, but I still can't help become excited when reading this word:
The scale of the open world in the Witcher 3: Wild Hunt is unprecedented...
That's a solid word. I like that word.