Well the review did mention that the dynamic lighting in the game was nearly gone (compared to earlier builds). Much brighter than it used to be, and probably brighter than it is supposed to be considering how many areas you are supposed to be able to light up, which is pointless now. There is also a much more noticeable blur effect when you move compared to trailers.So there is a neogaf thread dedicated to how much of a graphics downgrade DS2 is compared to what was shown in the trailers. Is it really that bad? Those pics are just...
However, From Software said that this time they have had a major focus on the PC version, since the last version was well known for being a sub optimal port. Maybe the trailers are from the PC version. Considering how old the PS3 and 360 are now, it would make sense that the PC version will have substantially better graphics compared to them unlike PC vs PS4/XBone. It would then also make sense to make the trailers based on the best looking product.