As Trump & Bibi have said, Hamas will be demilitarised either the hard way or the easy way. Israel can go back into Gaza city and finish the job any time, with very low casualties and now, no risk to hostages.
Hamas has no leverage. If Trump & Israel had the leverage to get the live hostages we have the leverage to disarm Hamas and deliver the whole plan - which includes a right for Gazans to leave.
Hamas is just playing for time with the hostage bodies to give them more time to kill off the other clans before they are disarmed and vulnerable to them.
That's a very good point, I hadn't think about that