My dream is that someone will spec out a nice simple subset of modern HTML/CSS, and folks will start making compatible static sites. A few years of that and we could have some nice truly lightweight browsers again. Imagine how fast sites like Wikipedia or YouTube could be if JS wasn't even an option.
The problem is that nobody is going to migrate unless a major web player swings a big and likely anticompetitive stick.
Not completely unlike Apples handling of flash.