Media magnate Pierre Karl Peladeau will seek the Parti Quebecois leadership and will likely announce it on Nov. 23, Radio-Canada reported Monday.
The CBC's French-language network said the controlling shareholder of Quebecor Inc. will make the announcement in his riding of Saint-Jerome.
The report said former premier Bernard Landry has offered to be with Peladeau for the occasion.
There are currently five people in the race: ex-cabinet ministers Jean-Francois Lisee, Bernard Drainville, Alexandre Cloutier and Martine Ouellet, as well as Pierre Cere, a spokesman for a group that defends the unemployed.
The new leader will be selected in May.