Practically the only thing on display here is the graphics, since this is a shot-by-shot recreation of the E3 video, probably made to show off the better graphics.
One thing I noticed is that there appears to be 3 coins hidden on each stage. Yay.
Fact of the matter is, the graphics and art direction are entirely playing it safe. It now looks very polished, but not exactly groundbreaking. Neither graphics or art are up to the level of Galaxy or Brawl, which had plenty of 2D gameplay. I'm not sure why it's a sin to want the game to have hand drawn graphics or just generally a more interesting style. Of course it looks crazy fun; it's 4 player Mario. But Nintendo themselves would probably say they are playing it safe with the graphics and art direction.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.
