My friend Michelle Redcatcher and I had this idea for a new world. Yes, we know that one is coming out here very soon.... but as we all no (we'll all complete it in no time ). We remembered the gobbler king mentioning witches driving them out of their home world..... thus forcing them to come to wizard city. For a new world, we could go to their world to drive the witches out. Or something like that. :D
Just a thought we wanted to share and hope you consider.