"We have finished consultations on the national consensus government," Azzam al-Ahmed, an envoy from Abbas's Fatah movement, told AFP today after talks in Gaza with its Hamas rulers.
"The announcement will come from the president in the next two days."
The Palestine Liberation Organisation, which is dominated by Fatah, signed a surprise reconciliation deal with Hamas on April 23, giving the two sides five weeks to draw up an "independent government" of technocrats headed by Abbas.
Hamas won a landslide victory in the last parliamentary elections in 2006.
More From This Section
But the European Union and the United States have refused to have any dealings with the Islamist movement until it renounces violence and recognises Israel and past peace deals.
Representatives of the rival factions have held several rounds of talks to heal the bad blood since Hamas expelled Fatah from Gaza in deadly clashes in 2007.
The April reconciliation deal incensed Israel, putting the final nail in the coffin of US-brokered peace talks between the Jewish state and Abbas's West Bank-based leadership.