If they mentioned new principal is taking over means they are already alerted that this current principal is not good. Did they say when they new principal will take over?
Actually church kindies may not be cheaper at the moment. My friend who works in church kindy told me that their teachers are also sent for training & they also invest alot in the materials used in class, so their fees tend to be more than in the past. I've asked 5 church kindies on their prices and the cheapest was around $180/month (1 term is $550) & they have a long waiting list already.