@NewLeafTori : Oh no no. What I meant is: if you have *not* cycled out 16 and you go to invite Francine, the option to invite her to your town won't pop up, and there is a very real risk that you will ended up with some random voided villagers from that town (since you have open room in yours, and Francine won't be moving back yet). You might wanna have a Plan B to be prepared to invite *someone else you prefer* should that happen, because by inviting a villager, you can cancel out that unwanted void move-in.
tl;dr EDIT: if you failed to invite Francine, some other random villagers from that town's void would follow you home. -__-