Nintendo has confirmed that there is more Animal Crossing in the making. At E3 the staff were asked if there was going to be a Revolution version of Animal Crossing, and they answered with this:
T. Tezuka: "Yes."
K. Eguchi: "We are trying to make it compatible with the DS version as well."
There is currently no further information, but be sure to keep checking PALGN as we will bring you the details first.