Soundwave on 22 June 2013
I think this is Nintendo's way of budget control -- the bump to 720p is the "upgrade", then the teams get to bump the poly count and background effects a bit, but not a full on engine/asset reworking.
Smash and DKC look like Wii engines bumped to 720p with some added polys. Mario 3D World doesn't look much better than Mario Galaxy 1/2 running in HD on the Dolphin either.
