One thing is clear, Ismail Qa'ani, commander of Gis al-Quds, has not been seen in public since Thursday night.
Hence - speculation.
He did not participate in Khamenei's Friday sermon, he was not seen in the company of the Iranian Hajj in Beirut and according to various reports, he was present/absent from the meeting at the Hezbollah headquarters, where Hashem Safi A Din was eliminated.
Some 'claim' that he gave the information to Israel..