That won’t happen. There will be no unity government. Netanyahu has the political strength in the new government to form a coalition out of the political right wing and the religious Jewish parties.
Besides, he vowed not to let there be a Palestinian state as long as he is Prime Minister, and the left is all about “two states for two peoples” and a belief that maintaining Jewish control of Judea and Samaria somehow will dilute Israel’s ability to function as a Jewish state.
But it may happen in a future election...
Pretty scary.
Not only can Netanyahu form a government with the religious parties, he has the option of booting them and inviting Yesh Atid instead (as long as he has Kulanu).