The Tarrant County Family Judges have sent out a letter to the Family Law attorneys advising them that the judges believe that the person who has spring break this year, only gets the children that one week of the scheduled spring break and not the extra two weeks that the schools are closed due to fears of the Corona Virus. This is the short answer. However, some might argue that since some schools are naming the extra two weeks of school closing "an extended spring break," the parent with access to the children during spring break should keep the children until the extended spring break is over. If the school says that there is a school closing due to the Corona Virus, then the answer is clear, children go back to the other parent after the end of the official spring break.
The bigger problem is that the Family Courts are not hearing any cases that are not emergencies. That would include: protective orders, and temporary restraining orders where the relief is extraordinary (like asking that the court exclude a party from his/her home or excluding them from access to their children.)