Only if and when a WYSIWYG tool becomes available to easily create these interfaces and animations in HTML5. Most of the people making these hideous Flash site

Only if and when a WYSIWYG tool becomes available to easily create these interfaces and animations in HTML5. Most of the people making these hideous Flash sites can't code, which is demonstrated by the fact that often there's not even a fallback page -- the creators somehow assume that everyone in the world uses Flash Player.