I know it will be quite a few years before it happens (if it happens), but it just looks so cool thinking about not having to look at all of those spinning blades taking up all that space. Something coming which will replace those blades and though wind farms will still exist, it will at least (for me) be a vast improvement to the mess that's already out there.
http://www.wired.com/2015/05/future-wind-turbines-no-blades/
http://www.wired.com/2015/05/future-wind-turbines-no-blades/