I think Israel will go for the siege
Cutoff food water supplies
Form a ring around the territory with ships and the existing fence.
Deploy drones and cadaver dogs to sniff out dead enders for elimination
Yes, move much of the populace out of the way, and starve the hidden Hamas fighters until dead. But... the international community won't let this continue for long. Which is why more extreme methods must also be employed. More bunker buster bombs, razing most buildings, air-fuel explosives to suck oxygen out of tunnels, etc. Kill as many of the hidden terrorists as possible in a short period of time.