I agree with Israel absorbing Gaza. They main reason the IDF can pull of their cleasning is because Gaza is a not state and Israel has no real skin in the game. If the Gazans has some sort of Israelis citizenship, the IDF would obligated to protect them, on paper. This would also de-legitimize Hamas as a ruling party.
But Israel will probably do the worst thing possible... Like form an uber South Africa apartheid, complete with forcing all Palestinians, from the West Bank, into Gaza.....at the very least. The IDF needs Hamas to exist a little longer to achieve their goals.