Look at the bit on the beach with the fisherman. Its the exact same texture repeated on every single square. it doesn't flow or blend in or anything. Monster Hunter 3 Ultimate had it and it drove me mad. Edit: Also, gameplay trailer was a poor choice of words. I meant the new Smash footage.
A couple of things I think will be smoothed out, like the getting off a surfing Pokemon animation and the pokeball throwing animation. To me they seem a bit too sudden and cut away too quickly. I'm sure they'll be changed, but I think the texture thing is there to stay.