This thing is freaking me out.

Is Resetti also going to be in AC:NL? I mean, what kind of purpose will he have there?
He will pop up the first time you exit the game without saving, telling you that they didn't have the funds to build a reset center for him and his pals, so he doesn't live in your town anymore. You can build a reset center through the public works program. That way he'll be there again to bother you whenever you forget to save.