Nawaz Sharif's daughter Maryam Nawaz and her husband are returning to Pakistan on Monday to appear before the court.
Maryam's brothers - Hasan and Hussain - would remain in London and wait for the outcome of the hearing where the accused are likely to be indicted.
Maryam is currently in London and is looking after her mother Kulsoom Nawaz, who has been receiving treatment for cancer.
On Oct 2, the accountability court, Islamabad, issued non-bailable arrest warrants for Hussain, Hassan and retired Capt Mohammad Safdar for failing to appear in court.
The judge, however, did not issue non-bailable warrants for Maryam but repeated the bailable arrest warrants after the counsel for Nawaz Sharif assured the court that she and her spouse would join the proceedings on the next date of hearing set for Oct 9.