The more, the better when it comes to Ni No Kuni, right?
Beyond the scope of the game lies more adventuring: according to Siliconera, downloadable quests will extend the quest for the die-hard fans. For the time being, it is unannounced (but quite likely) that these additions will come to North America.
"The Red Hot Diva" will bring you to the outskirts of Decarock Mountain where you have to tame Magmaski, and "The Strongest Weapon" will ask you to visit the Doton Forest. Those are only a couple examples, as Level-5 will likely create more bonus adventures for the fans. Furthermore, the developers are going to toss up some downloadable items on the PSN, so that's even more incentive to visit the Store when you finally get your hands on Ni no Kuni early next year.