Hardwood is moving more toward distressed planks, planks in wider widths, and exotic woods. It's no longer just plain maple or oak. We're seeing more mahogany, cherry, teak, and walnut. Also, mixing woods is becoming increasingly popular.
Freshen up your flooring with new color combinations. Mix warm with cool, light with dark, contrasting colors in one room and monochromatic in the next. Throw out the rules.