Make a few projections about where you see the global economy headed in 2035. Will there be greater concern for poor nations? Will the US and China hold their positions of dominance, along with the EU (non militarily). Is Africa the Next big thing? Or you could predict for 2025, or even 2015. The point is to use your knowledge of the reading you are doing to come up with some important trends, and, I hope, trends that will stimulate some discussion.
Don't try to take all of these on, pick an agency (IMF, WTO, WHO) or trend or "economic vector-- say "carbon-- or nuclear fuels" and note where that might be headed. Are their any contenders for economic greatness who are below the radar now? 20 years ago, 1995, China was certainly a country on the move, but--check it out-- it was only a "FUTURE" economic superpower. Nobody predicted that it could sustain its growth rate as it has and fan out into Africa and Latin America, the least likely of targets for it.