Ask HN: What's the future of frontend web development?

I'm curious about the future of frontend development. It seems like every few months there is a new SaaS or stand alone app that offers an easy way to develop responsive html5/css3 based layouts and designs e.g. Adobe's Edge Refow. Of course, I don't think these programs are up to par yet, but what will the field look like in two - three years?

Will frontend development/developers slowly be phased out by software or will the role of frontend developer transition into something along the lines of javascript specialist focusing on single page apps?