According to ABC News, Bowe Bergdahl is going to be charged with desertion. ABC obtained this information from Bergdahl's attorney.
While I certainly think Bergdahl deserves to be court-martialed, I honestly did not think this would come to pass because of the Army's effort to keep it hush-hush up to and including compelling members of Bergdahl's unit to sign non-disclosure agreements. The Pentagon certainly wasn't in any hurry to bring this case forward. It appeared that an announcement was going to come in late January, but the Pentagon squashed such speculation.