In all honesty, there are a few outcomes that are potentially worse if he is dead: Hamas splintering into many smaller factions, or treating him as a silent leader and refusing to release hostages because “he hasn’t ordered it”.
Hopefully Hamas will confirm and whoever replaces him will agree to release the hostages.
I hope you’re wrong about both Israeli territorial ambitions and the unwillingness of Hamas to release hostages.
How are the Egyptian media covering the news?