The endgame is already written for this one.  When the Jewish settlements control enough Palestinian territory, ethnic cleansing will begin.  It will first be informal--assassinations of prominent Palestinians, night attacks, burnings of Palestinian property, destruction of their crops.  Somehow, the IDF will always arrive just a little too late to protect Palestinianian or catch the criminals.  Palestinians will then, in desperation, begin the retaliate against the settlements.  That will be the signal for the Jewish government to begin formal expulsions, first of communities, then more wholesale measures ("Get out while you still can, Arab dogs!").  This is what religious Zionists (who hold the fulcrum of power in Israeli politics) have always wanted: a "pure" Jewish state on Eretz Israel.  And it will put the Jews in exactly the same role as tyrants throughout history.  A light unto the nations, indeed.