"We are waiting on final confirmation from CAF, but that is the thinking at the moment, that the qualification will start in September and not in June," Motsepe's advisor Danny Jordaan, who is also president of the South African Football Association, told reporters.
A final decision is expected to be made at the next CAF Executive Committee meeting, which is scheduled for May 15 in Kigali. A CAF spokesperson declined to comment when contacted by Reuters.
The Dutch protest will follow action taken by the players of Norway and Germany who wore shirts before their World Cup qualifiers this week voicing concern over the conditions for migrant workers in the Gulf country.
"I can give a scoop," De Ligt said, referring to the planned protest. "You will see what it is tomorrow."
The players marked the start of their quest to qualify for the tournament by protesting against the Gulf state's alleged treatment of workers before kick off in their opening match.
"FIFA believes in the freedom of speech, and in the power of football as a force for good," the organisation said in a statement.
Spain, France, Italy, Germany, Belgium, the Netherlands, Portugal, Croatia and England all avoided each other thanks to the seeding system and, barring major upsets, should qualify comfortably for the tournament in Qatar.