I work with several clients in the salon/spa industry. It's a fascinating industry, and one that is particularly sensitive to consumer trends.
I found this article that outlines the 10 anticipated trends for 2010 and was struck by the focus on wellness and prevention, rather than indulgence and pampering. It seems to be an overarching theme throughout many industries, and one that is surely a direct result of the economy of the past two years.
From my perspective, many of these anticipated trends are already ringing true. Give it a read, and see if you agree with what appears to be on the horizon.