Do you think Rails and Django (and the like) will evolve to remain competitive with newer technologies like Node.js, Meteor, Play, etc (not to mention, whatever's next)? Or will they largely be legacy technologies, i.e. still in wide-use but not frequently selected for the best new projects?
Edit: Please note that the question is not whether or not Rails and Django developers will still be in demand in 2016. I'm confident they will be. The question is will the best new projects in 2016 consider using Rails and Django.
