What impresses me most are a couple of the lighting effects , especially the flame holders on the wall and the real time flicker shadowing.
The building structure is great at times, o.k. at others. While room objects such as books looked like they were using Game Cube textures.
Also, the cloth on the male character's outfit was superb. Damned good.
Female character models were stiff. Hair looks nice enough, but stiff.
The lava, particle effects everywhere, heat effects, etc. were not state of the art, but modern and good.
Can we, or should we expect anything more than 'Modern and good' from Wii U graphics?
Will 'Modern and a bit better' that we see from the other new consoles negate the value of the Wii U?
I don't think so.
But all in all regarding this game, whether it comes out or doesn't, is a hit, or a flop, it looks good, and shows a modern engine being used to good effect on Wii U.