TypeScript has almost no buzz, interest or excitement surrounding it that I can detect, which is sad because I think it's a good effort and great tool. I would appreciate it, if someone could point me to an active and growing TypeScript community.

As for TypeScript tracking ES6, I just watched "Kit Cambridge, "EcmaScript Next: The Subtleties of ES 6" at W3Conf 2013" http://www.youtube.com/watch?v=Dt0f2XdvriQ and am really kind of stunned at how much I hate ES6 now, when before I knew nothing about it.

Dart hits the sweet spot for me.