Initially, I did not change back to my maiden name, but did it about a year and a half later. Shortly thereafter I changed my children's last name to mine, (legally), since it became evident to the courts he was a dead beat dad, who did not pay child support or ever come and see them. It has been almost seven years since he has seen them. Now that I am remarried I am keeping my maiden name. My DH is going to adopt the boys and when he does we are going to give them a choice of what last names they want. So if either stays with my maiden name I will keep it, if both pick my DH's name then I will change it at that time.
By the way it is such a PITA to change your name. When you get married the first time you are so excited to do it and start you new marriage. Then when you have to change it back, AAARGH. I kept forgetting something, one company needed copy of the divorce decree another didn't, so on and so forth.