Ryan Dougherty (DOCK-uhr-tee) and Lee Grace Dougherty are to appear Monday in federal court in Valdosta for a change of plea hearing. Their brother, Dylan Stanley-Dougherty, is not scheduled to enter a new plea.
All three pleaded not guilty in May to Georgia bank robbery and gun charges.
The siblings pleaded guilty to Colorado charges last August. Ryan Dougherty got 18 years, Lee Dougherty received 24 years and Dylan Stanley-Dougherty got 32 years for those charges.
They still face charges in Florida, where authorities say they shot at an officer during a high-speed chase.