Back in October, Nintendo released a video roundtable on Animal Crossing 3DS in Japan. It featured three of the developers working on the game, Aya Kyagoku, Koji Takahashi, Kazumi Totaka discussing about its new features. Back then it was in Japanese, but now Nintendo have translated it to English and in doing so revealed some new gameplay aspects.
Totaka-san even puts in a musical performance at the end of the roundtable, playing a new piece of music from Animal Crossing 3DS.