The Future of JavaScript ran through almost all of the new features in JavaScript 1.7, all of which are nice for programmers but probably won’t be widely used on the public web for a long time (until use of browsers that don’t support JavaScript 1.7 is negligible).
However JavaScript is being used lots of places now apart from web browsers and giving JS features programmers expect places it well to be the default glue and application language for the next decade on the web, desktop and the server. Where is server side JavaScript? from July 2005 continues to be one of the most viewed posts on this blog. Many people are thinking along these lines, including the first Q&A for this session.