I agree with you Maha
specially after the Freedom flotilla incident and few days back, China surpassing Japan as second largest Economy in its Quarterly evaluation, however i think in recent times Iran's Nuclear issue has gone behind the curtain of intl diplomacy but you are right as it can reemerge.
so,
6. Palestine Issue and Turkey as possible future leader in Middle east.
7. China Holding the reigns as possible super power
8. Future of Afghanistan (in accordance with U.S withdrawal in 2012.
Please keep posting and instead of adding come up with your own list, as latter we can sort Common Topics as most Important ones. What my folks think?