Be aware of a problem here. If you go back several years and look at sites people defined as "cutting edge" or "futuristic", they were mostly gawdy Flash-ridden wastes of space that were certainly unique, but ultimately unusable and hard on the eyes. Even if you go back just a year, Adobe's Flex was being touted by many as a way of the future - especially in e-commerce - yet take a look at Amazon now. It's evolved, but not in that way.

Looking at the high-end fashion catwalks to predict consumer fashions for the next decade doesn't work. So it goes with Web design. Remember that the future is made of lots of tiny changes compounded - not large sweeping innovations.