The World in 2025
“The World in 2025” as seen by the European Commission » http://ec.europa.eu/research/social-sciences/pdf/the-world-in-2025-report_en.pdf
“Global Trends 2025, A transformed world” as seen by the US National Intelligence Council » http://www.aicpa.org/research/cpahorizons2025/globalforces/downloadabledocuments/globaltrends.pdf
It's also cool to read the two forecasts comparatively to get a glimpse on how political identity is constructed in America and the EU. I'd also be curious to see if China or Russia have released any public prognosis, if you know of something of the like, please holler
China in 2025 as seen by the WEF (but i'd be curious how THEY narrate about themselves.) http://www3.weforum.org/docs/WEF_Scenario_ChinaWorld2025_ExecutiveSummary_2010.pdf
see also world in 2030, world in 2034, etc
(documented exercizes of forecasting and prediction)