Yes, the judge can change the support order because of the private school. Be ready to argue against that your kid already establish relationships and knows the environment. In other words, it is the "child's best interest" to keep going to school. Have a good argument against that. Also, I'm not sure if you have a court order that states something about schooling such private schools and public school. Some court orders have that included. If not, just research something about that and see if you can get some rebuttal ideas off of that.

