I think the Israelis will execute their short term military goals quickly and with comparatively minimal Israeli losses.
I am not as optimistic for the prospects of the Gaza “civilians” if there is such a thing.
I am decidedly pessimistic about the long term fall out from this war, but the Israelis are damned if they do and double damned if they don't. So it's not like they have a choice in the matter.
My biggest concern is that the actions they rightfully take to defend themselves will inflame preexisting hatred and mobilize it to create a highly unstable political and military situation in the region.
More importantly, the actions they take may allow the feckless world media to paint Israel as an international pariah once the fighting is over, the destruction becomes publicized and the world is faced with the problem dealing with displaced militant Gazans. If something like this causes them to lose American support for any reason, the Israelis will be without friends and very hard pressed.
Worst of all, if the war spreads to Syria, Israel will possibly follow through on threats to destroy Damascus which would shock the world.
I don’t think that Israel will lose American support, but it will increase the isolation of Israel and diminish support for America.
They have hurt Hezbollah. Quietly.
If they don’t back away, they will be destroyed too.