Peter Saunders, an English survivor of clerical abuse, had called on Pope Francis in July to hand over information about abusive priests to state authorities.
A papal commission on child protection will be expanding its nine-member panel to include more experts and another survivor of clerical abuse.
One of the Irish survivors of clerical sexual abuse who met Pope Francis on Monday described the encounter as a "huge vindication" for her.
The victim, Marie Kane, also asked the pope to remove Cardinal Sean Brady as archbishop of Armagh, Northern Ireland.
The Council of Cardinals will meet again this week, presumably to consider an overall blueprint for a new structure of the Vatican's central bureaucracy.
Some victims' advocates dismissed the upcoming meeting as "meaningless" while others endorsed it as a positive step, though long overdue.
Aboard the papal plane: Pope Francis said he will meet with six to eight sex abuse victims and confirmed an investigation of the Vatican's former secretary of state.
Ahead of Pope Francis' first meeting with his panel charged with tackling the clergy abuse scandal, victims are demanding the church take immediate action to expose perpetrators.
Examining the Crisis: The victims of clergy sex abuse have been waiting for the Vatican to show it understands the depth of the problem. They'll have to keep waiting.