I don't think either side will cease to exist. And I don't think they can live intermixed given how extreme the cultures have become. So there needs to be a thick DMZ between them policed by a 3rd party. Either that or eternal violence, which is actualy still most likely. But events often suprise us all... maybe the Israelis will all disperse after seeing how unsafe they actually have made themselves by pissing off everybody they could possibly piss off.