Animal Crossing: Jump Out is releasing in Japan this fall, but not in North America and Europe.
Concerning Europe in particular, it was confirmed in the latest Nintendo Direct that the game will ship in the first half of 2013. This likely applies to North America as well considering the title wasn’t even mentioned in the North American broadcast.
Speaking about the release dates of Animal Crossing and Fire Emblem on 3DS, Nintendo Europe President Satoru Shibata said:
“We also owe you some news on two upcoming games – Animal Crossing and Fire Emblem for the Nintendo 3DS. In order to provide the best end result and give fans the quality they expect from Nintendo we can confirm today that these two titles will now be launching in the first half of 2013. We are sorry that you will have to wait a little longer but we hope you understand our desire to ultimately deliver a game that fans will love.”