Well, we'd have to wait and see if a few of the Kadima people defect. A certain Ms Tzipi isn't sounding very happy, does she?
Livni resigned and is not relevant at the moment. As for the other members of Kadima, they approved this deal unanimously, And with good (personal) reason: most of them were about to lose their jobs which were now saved because of this deal.
The 12 out of their 28 members who bothered to show up approved it unanimously, that is:
Certainly looks like there might be possibility for a split, especially if the other 16 are worried that going into the next elections under the Kadima label would be too risky.
A bit off/t, but I heard that one June 4, 1967, a surprise coalition government was suddenly announced, and Israel attacked Egypt the next day. Is this a signal that Israel will attack Iran this year?
Circumstances were a bit different then; the unity government was forged specifically
because Isreal's neighbors had made it obvious a war war imminent. Here, on the other hand, there are some pretty specific domestic issues they're wanting to address.
If anything, I think this makes an Israeli strike against Iran less likely. Kadima + Likud + Ehud Barak's splinter from Labor is exactly half of the Knesset now so presumably those super-right wing minor parties are more marginalized.