User blog comment:Tori334/House of Annubis Season 4 announcement coming soon/@comment-12458506-20130717044145

If they do do another season, it could be one where it's summer vacation, but all of them got stuck in the house because somehow they missed all of their flights home but Nina is able to show up because she got an early flight there to see everyone before they leave the school and then they have to do whatever (save the world, stop evil, etc.) and they show the newbies how it's done-the original way with the original Sibuna. That would be an awesome way to end the series if they choose to after the 4th season.