hmmm, i believe that soon we will see the world ruled by a number of supranational bodies.
The EU will consolidate its power base to include russia and all former soviet bloc states, too much infighting will prevent it from furthering its cause around the world though.
The USA will eventually have a form of control over the entire American continent, both North and South America will have their own governing bodies which join together under the Banner the "USA".
These two bodies will be very closely linked via NATO.
China will come of age in about 20-50 years time, it will become the worlds new super power. Any country touching its borders (and a fair few from further afield) will be included within its economic and social governing body, it will become and unstoppable force with more wealth than any other body.
Africa will remain doomed, civil war, aids and famine will combine to reduce the population to less than a third of its current levels. The world will then work together to try and put Africa back on its feet, but the gesture will be token and ultimately hollow and the continent left to sort itself out.
The Middle East, tired of interference from Europe and America, Will form a Coalition of the People or somesuch. They will have close links with the chinese power body and thus will ensure that western armies never again set foot on middle eastern soil. Israel is screwed, soon enough the world will stop caring and the middle eastern community will of course come to the aid of palestine, soon the israelites will be the ones living in camps and having walls built around them.
Australia and New Zealand will join together, but then be left floundering, unsure of which body to be a part of. They will eventually remain a duo and become the one voice of free speech.