We have been decorating with warm colors for a few years now. Depending on your area of the country, some color trends change faster than others. Where I live (western new york state), we are still decorating in a warm color palette (tans, beige, golds, sage greens, rusty reds) but I am starting to see signs that warm colors are evolving into cooler colors.
Just recently a client ask me to help them pick out a dusty cool blue paint color. I was showing another couple two different rugs for their living room - one was cool and one was warm. They specifically said "We want the cool colors because we see warm colors everywhere. We want to be different" .
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One more sign of change is I just read an article in "House and Garden" about Gwyneth Paltrow's house. In this article Ms. Paltrow states" I like cool, neutral colors. I don't like warm colors for my house. I think a cool palette is more serene"
I'll keep you posted as the trend becomes more fixed.