Twin brothers Ashton and Carlos Larmond and Suliman Mohamed appeared separately by video link before an Ottawa judge on Thursday.
A March 9 date was set for a judicial pretrial in which prosecutors and lawyers for the accused will meet with a judge behind closed doors.
However, the three men aren't scheduled to appear in court again until March 16.
It's not clear when a bail hearing will be held.
Prosecutor Rod Sonley says he has yet to receive a bail application for any of the alleged co-conspirators.
Meantime, lawyer Doug Baum withdrew as counsel representing the 21-year-old Mohamed, citing a conflict of interest.
Another lawyer, Leo Russomanno, has taken over the file.
Mohamed faces charges of participation in the activity of a terrorist group and conspiracy to participate in a terrorist activity with the 24-year-old Larmond brothers.
Mohamed's father Idris watch the court proceedings on Thursday, later telling reporters that he is devastated by the allegations against his son.