The al-Joumhouria newspaper reported that ex-prime minister Saad Hariri
...Second son of Rafik Hariri, the Leb PM who was assassinated in 2005. He has was prime minister in his own right from 2009 through early 2011. He was born in Riyadh to an Iraqi mother and graduated from Georgetown University. He managed his father's business interests in Riyadh until his father's assassination. When his father died he inherited a fortune of some $4.1 billion, which won't do him much good if Hizbullah has him bumped off, too....is the most likely replacement, but the matter is not definitively settled, as reliable sources have confirmed that this matter needs serious consultations, especially since Hariri has certain conditions that he previously had announced it before the formation of the current government.
Citing government sources, al-Joumhouria said that consultations will take place at a rapid pace in order to combat the ongoing economic crisis and upheaval inside the country.
It should be noted that Saad Hariri previously said he was not interested in the premiership, especially after the collapse of his prior government.
On Monday, Lebanese Prime Minister Hassan Diab announced resignation of his government; this was preceded by the resignation of several ministers and parliamentarians.