My reading so far is that the opposition parties will support the government as long as it's executing the hostage deal.
"Netanyahu’s coalition will maintain a Knesset majority even without Ben Gvir’s party, though if fellow far-right minister Bezalel Smotrich’s Religious Zionism also follows through on threats to depart, it would fall to a minority. Opposition parties have promised to support the coalition so long as it is advancing the deal."