For a change of custody request is it common for the Judge to grant a "temporary" change in case the child changed his mind.

I am the father of a 14 year old boy who has decided he wants to live in Blakely, Ga with me. I filed all needed paperwork to make that happen. The parenting plan I filed was standard, the same as what is currently in use from the divorce. His mother has hired a lawyer and he is telling me she wants only a Temp change to see if he will change his mind, she does not want to pay child support, I can stop paying supt but they want me to pay an additional $500 a month in alimony to help her pay for her house(already paying $500). She says she will loose the house without my $ and does not want to loose it in case he changes his mind. Is a temp order normal? What would be my best argument to get this over with and to have the standard guidelines applied to the child support order.