Interesting to read but primarily as a way of seeing how mainstream Java style development is evolving. A lot of these items are things which have been going on for a long time in other corners of the programming world.

But keep in mind that there is also a big part of the programming world which is not IDE heavy. Personally I quite dislike IDEs. But I use them for languages where they are kind of a requirement.

But for dynamic languages the needs tend to be quite different. Development is more REPL focused and less IDE focused.