While finely finished oak flooring may be the quintessential hardwood for the Americas don't hesitate to experiment with wider width or distressed planks and some exciting new exotics.
Navy and true blue remain important and will become more diverse, influencing purples and greens. Soft shades of aqua--the water colors that have performed so strongly in recent years--continue to be a mainstay. You'll also see unusual combinations as blue-greens are paired with rich browns, yellow-greens, and vivid red-oranges.