Nintendo’s next to mobile apps are going to be based from the Animal Crossing and Fire Emblem game series. There’s not a lot of details about the upcoming apps yet, but the Nintendo press release did say that these would have more ‘game elements’ than Miitomo.
Miitomo has been a huge success, and I personally use the app and enjoy it- but Miitomo is focused more on social networking, question answering, and dressing up your mii. I’d love to see a fuller single player experience, especially using those two series. I’m very excited to check out both of these apps when they release.