They'd love not to, but they probably will for the same reason they even accepted the deal to begin with. If we believe that the ceasefire deal is real, then something made Netanyahu think signing a deal now was a good idea. Signing a ceasefire deal this late into the game, too late to save Israel's reputation but without accomplishing the war's initial objectives, is strategically a bad decision so something must have changed and while until we know what that is we can't make predictions but I'm cautiously optimistic.
Note: I'm of course happy about the ceasefire, but with the information we have available I don't understand why someone who decidedly doesn't care for Palestinian lives (or really any except his own) would accept this deal.
Good news, but disappointing it won't start sooner. Some Israeli soldiers are going to go crazy trying to get as much civilian killing and brutality in as they can before Sunday.
Well, so apparently the first possibility I noted is not the case, and the early reports weren't just yet again blowing smoke.
So we're down to two alternatives - it's a legitimate deal that cedes at least some significant Palestinian autonomy, in which case Netanyahu will, as he already has in the past, sabotage it, or it's just a long term con job that will leave enough of an Israeli presence that they can shift to West Bank style incremental conquest.
It's not so much what Trump will let them get away with, but what Putin will let Trump let them get away with.
Just left to his own devices, Trump, strongman sycophant that he is, would let Netanyahu get away with anything. But there isn't enough Israeli support for continuing to just grind away at murdering Gazans, which is why Netanyahu tried to expand it out to a regional war. And the problem with that is that any regional war is going to draw Iran in, and Iran is allied with Russia, so Putin isn't going to stand for that. And Trump is Putin's lapdog.