White rooms, either in a very monochromatic and minimal way, or with lots of pops of color are very popular right now. This is another trend that has grown on me. For the first time in my life, I'm actually considering something like this in one room of my house. And I said I'd never do white! (of course, it wouldn't be ME without mixing it with color, so if it happens there will be some bold blue somewhere, you can rest assured).
(for the other posts on 2012 trends see also: WALLPAPER, BLUE, & GRAY)