Sisi has got money from Saudi Arabia to reverse the Libyan revolution. He has created an excuse to invade the country. He hopes Egyptians will forget that he is a dictator who reversed their revolution.
My take is that he should hurry up as that is what will destroy the Egyptian Army. He has forgotten that Israel has long wanted to destroy the Egyptian Army. Egypt has a History of suffering defeats in Sudan and Libya and I can't see it changing this time. The Islamic opposition both inside and outside the military will now have the opportunity to collaborate with the Libyan factions.