The Friday hearing will likely include further arguments on whether prosecutors should be allowed to admit evidence of injuries to service members who searched for Bergdahl.
The judge has also threatened to require testimony from government officials about the pace at which the defense is receiving classified evidence.
Bergdahl, who's from Hailey, Idaho, faces charges of desertion and misbehavior before the enemy, the latter of which carries a maximum penalty of life in prison. He was held captive for five years by the Taliban and its allies after he walked off his post.
His military trial is scheduled for April 2017.