Foliage and its shadowing seems to be inferior in that scene, but not much else. The lighting model in the latest trailer is far superior. The 2013 trailer does not even have PBR implemented. They were based on the old renderer. And the new trailer does not have Geralt casting the Igni sign like in the 2013 trailer, so volumetric lighting on the monster and surrounding can't be judged effectively.
But foliage and shadowing looks great in these screenshots however. Almost all comparisons are inconclusive so far due to different areas and TOD cycle. Even in the screenshots where the individual aspects look as good as anything shown before, we don't have an exact screenshot from the old build to compare it with.
It even reacts realistically to the Griffin's motion:
Water simulation is cool as ever. This is from the recent YouTube event.