Thanks for kind words. We try to keep a up to date list of the cool changes in https://github.com/JuliaLang/julia/blob/master/NEWS.md#julia-v030-release-notes.
We don't really have a road map for future development, but look at the github issues with the milestone 0.4-projects. https://github.com/JuliaLang/julia/issues?q=is%3Aopen+is%3Aissue+milestone%3A0.4-projects Regards Ivar
