Over at ETFtrends they reflect on their 2007 ETF predictions. Not too shabby of an 80% correct rate. What they got right: Global ETFs outperform domestic ones, the draw to ETFs will continue to be huge (that was kind of a no-brainer), Emerging markets ETFs a big draw, ETFs in retirement accounts getting closer to being a reality, Ultra-short ETFs a popular play, Mutual Funds feeling more heat to perform.
What they got wrong: Fidelity didn't join in the fray, and Actively managed ETFs weren't exaclty a dud.
At any rate, ETFtrends is a good site to cull ideas out of. I'll have to see what they have on their radar for 2008.