There is talk in the Israeli media that Hamas may release Arbel Yehud in the coming days because they violated the deal.
I hope I am wrong, but from what I know of Hamas, they will not give anything for free. Even Israel’s threat not to allow the displaced to move north will not convince Hamas to give up.
Carrying out the threat could lead to a halt in the release of the hostages. This is a very delicate matter, and it is better for Israel to talk less and let the mediators do more.