1. It's a From Software game. I don't think I've ever played a From game and thought, "Whoa, the graphics in this game are technically great!" Art style, sure. Technical graphics, nope.
2. The game isn't out yet. Calm the fuck down.
3. If graphics really matter that much to you, wait a month and pick up the PC version. I'm gonna go out on a limb here and say the PC version will probably look better than the version released on last-gen consoles.