Yes, it seems very difficult to achieve peace.
I see two possibilities
- a moving of the "Palestinians" from Gaza (and Judea, Samaria) to Syria or other Arab countries
- an end of the importance of oil, thus drastically reducing the income to the Saudis and thereby the financing of these barbarous ideologies
Moving of the Palestine's seems more plausible.
Oil is a valuable power source who's importance would last for another 5 years I think.