Aboriginal justice advocate Wayne Muir will face a contested committal hearing in February.
The 54-year-old has been charged with 20 historic sexual assault offences against four women from 1979 to 2001.
The woman were aged from seven to 35 when they were allegedly sexually assaulted in Ballarat, the Black Hill lookout and Wendouree.
Muir appeared at the Ballarat Magistrates Court on Thursday for a committal mention, where administrative issues about a contested committal hearing was discussed.
The court was told Muir's defence counsel would cross-examine 11 witnesses, including Muir's former partner, the complainants and police informant, at the hearing.
Five complainants are expected to give evidence.
The prosecution indicated all of Muir's charges needed amending, and they would be withdrawn and refiled before the hearing.
He faces 20 charges, including five counts of rape, 11 counts of indecent assault and one count of buggery.
Muir was stood down from his position of chief executive of the Victorian Aboriginal Legal Service in February amid the sexual assault allegations.
He was placed on bail in July with conditions including reporting to the Ballarat Police Station once a week, to live at his Wendouree address, surrender his passport, not to attend international points of departure and not to contact prosecution witnesses other than the informant.
Muir will reappear at the Ballarat Magistrates Court on February 25 for a three-day contested committal hearing.
Have you signed up to The Courier's variety of news emails? You can register below and make sure you are up to date with everything that's happening in Ballarat.