Israel is doing more harm to itself than to Iran. All wars end on table and when this one does, millions of Iranians will resolve to rebuild a stronger and more resilient nation. The population will always be more focused on security and exacting revenge from Israel.
I don't know who the F is making decisions but antagonizing all your neighbors doesn't bode well -Gaza, Lebanon, Syria, Iran - in next 10-20 years as US turns more inwards (and focuses on its population), Israel will have diminished status. The nation states which Israel is bashing will have more strength and will be ready to punish.
The big question then will be of asymmetry on Nuclear arsenal and whether Israel will use it. I see world becoming more unstable and all because Israel can't control its ambitions