Sources said the voting would likely unofficially be between former MKs Ruth Calderon and Danny Danon.
A new Jewish Agency head will be chosen among seven candidates after eight months.
Ruth Calderon boasted putting bread on her Seder plate.
Calderon, who is a veteran Jewish educator, will be the candidate of the government in place of Intelligence Services Minister Elazar Stern, who dropped out of the race.
Yesh Atid MK Ruth Calderon will lead the Seder in Jerusalem's German Colony; approximately 100 people have already signed up for the gourmet meal.