And we still have nearly a year until release, imagine how much better those graphics can get.
I wish people would stop assuming that just because the game is not finished yet means the graphics are going to look better upon release. I mean, look at Oblivion, did the finished game look better than the early screenshots or our first looks at the game in motion? Now, while things in the current build may be subject to change before release, I suspect that what we've seen in the trailer is more or less in the state Bethesda expects it to be released in, barring possible polishing. After all, why would Bethesda intentionally show things that they know don't look as good as they will in the finished product?
I'm sooooo looking forward to when/if they release the gameplay videos. Like they did for Oblivion when they released like 5 vids showcasing what you could do in the game.
Ironically, you just brought up perfect evidence to counter the argument that if the game looks so good now, it must look even better than it's released. Note for example the fact that one of these videos demonstrates dynamic object shadows, something that was cut before the game's release, in its place, we got only actor shadows and tree canopy shadows.