Palestinian Islamic Hamas movement and President Mahmoud Abbas' Fatah movement would launch the fourth round of talks in Cairo on Sunday to discuss an Egyptian offer calling for the formation of a Palestinian national committee to liaise between Gaza and the West Bank until the elections are held next January.

Egypt made the proposal to bypass a basic argument between the two groups on forming a unity government with a political platform that is committed to the international requirements, mainly recognizing the state of Israel.

The fresh round of inter-Palestinian dialogue will try to wrap up outstanding issues, including the two factions' failure to agree on a political program for a unity government and differences over the electoral law and the representation system for the elections in 2010.

On Saturday, officials from rival Hamas and Fatah movements said they hold true intentions to get closer to reconciliation in a new round of inter-Palestinian dialogue which will start on Sunday in Cairo.

"Hamas' delegation bears new ideas and various options to make the Palestinian dialogue successful," said Mushier al-Massri, a Hamas lawmaker based in Gaza.

"There are clear instructions from the higher leadership of Fatah that the dialogue must succeed as a high interest for the people," said Amin Maqboul, a Fatah official in the West Bank.

Yet, analysts said that opportunities of success of these talks are not that much optimistic, given the presence of Israeli Prime Minister Benjamin Netanyahu's right-leaning government and the U.S. pressure on Hamas.

"The Palestinian factions would not reach any agreement during this round of talks as the United States controls the talks and pressures Hamas to recognize Israel and abide by the international Quartet requirements." Abdel Kader Yaseen, a Cairo-based Palestinian analyst told Xinhua.

The International Quartet, which includes the United States, the United Nations, Russia and the European Union, have linked the recognition of Palestinian government with the recognition of Israel and the condemnation of violence.

Hamas spokesman Fawzi Barhum also admitted on Saturday that the new session of Palestinian reconciliation talks is likely to be " difficult."

"This session of talks will be the most difficult because of the lack of flexibility witnessed in the three earlier rounds," which prevented achieving progress in the dialogue, Barhum said.

"If they (Fatah and Hamas) are to form a government it will be a national unity government, a technocrat one, a government which consists of independent and professional figures," Egypt's former ambassador to Israel Mohamed Bassioni told Xinhua.

Abbas had stated in the past that he wanted to form a technocrat government which will supervise the reconstruction of Gaza and prepare for future general elections.

Fatah is hoping that forming a technocrat government will end the boycott imposed on Hamas by the West, thus accelerating the process of Gaza reconstruction.

However, Hamas spokesman Ayman Taha has said that Gaza reconstruction is highly essential but should not be at the expense of his party's standings towards the recognition of Israel because it is unchangeable.

U.S. Secretary of State Hillary Clinton has expressed doubt that rival Palestinian factions will clinch a deal on a unity government, but wanted to keep options open if they do.

On Wednesday, she said that the United States would not deal with or fund a Palestinian government that includes Hamas unless it meets three international conditions.

"We will not deal with nor in any way fund a Palestinian government that includes Hamas unless and until Hamas has renounced violence, recognized Israel and agrees to follow the previous obligations of the Palestinian Authority," Clinton told the House of Representatives Foreign Affairs Committee.

Though the process of talks is difficult, Yaseen said "Egypt will remain the host for the Palestinian factions' talks even there are enhancement in its relation with Israel, because of political and geographical advantages."

He said Egyptian intelligence chief Omar Suleiman had traveled to Israel to promote some ideas to solve the problem but the United States rejected them at all.

Bassioni also affirmed that "The Egyptian role is crucial and that's why Egypt sent Suleiman to meet Israeli officials."

But he said Egypt is just a mediator that "would not press on Fatah, Hamas or any other faction."