Federal prosecutors said in court documents filed Wednesday, they plan to present a superseding indictment against Reginald Wayne Miller, as well as produce additional evidence against Miller.
Prosecutors have asked for a continuance in Miller's case until September 11.
The indictment says Miller, who serves as the president of the college, did knowingly provide and obtain labor and services of two unnamed individuals by means of abuse and threatened abuse of law and legal process.
He was initially arrested May 21 on a federal criminal complaint.
According to federal authorities, eight students at the college said Miller threatened expulsion and therefore termination of their legal presence in the United States for noncompliance with his demands.
The international students worked on the Marion campus on student visas, and the warrant says they were paid below minimum wage. It also says they endured work schedules that were outside the bounds of those permitted by federal regulations.
The students performed work under hostile conditions and duress, they were not paid, and they lived in conditions that were substandard, according to the warrant.
It adds that the students endured long periods of no hot water, heat or air conditioning, and food that was expired or insufficient for consumption and nutrition.
Miller remains behind bars at the Florence County Detention Center on a $250,000 bond.
According to the Cathedral Bible College website, the Marion campus on North Main Street was purchased in the fall of 2012. The school opened in January 2013.
The website says at one point the Bible College was located in Myrtle Beach.