Aren't you afraid that the situation of Watch_Dogs will repeat itself, when the first trailer was compared to the final built of the game?
If one watched the trailer they would see that the character models in the game look better, even Geralt, he's been perfected - he's got better shaders, for instance. We made lots of new details, considerably improved the facial expressions and lip synchronization with spoken lines. We're dubbing it to 7 languages so we're not able to record motion capture of changes of the actor's face, like in Call of Duty. It wouldn't fit on three blu-rays. So we implemented the dynamic system based on sounds/phones, like in The Witcher 1 and 2, where it was weak. In The Witcher 3 it's incomparably better done, we've raised the bar for whole industry in comparison to other games that have to use the same system [like, among others, BioWare's games - editor note] and you couldn't see this in the trailer.
However the issue of lighting quality in that trailer remains subjective. We've made a mistake of rendering some shots in dark and gray colors. It was just an option picked randomly by the engine. I think that there will be places in the game that it will look stunningly good and no-one will accuse us of changes from the first trailer. Unfortunately, there will also be places where the game will look worse. It also happens in GTA - when the storm comes and it's gray, especially in the woods, graphics will for sure seem worse than in the living city illuminated with neons.