i don't think you can "catch up" with go, because it has aimed at being minimalist. catching up by removing major features to a language isn't something i've ever witnessed.
You can absolutely catch up with the concurrency model, on the single binary deployment, and a other features. Go isn't "minimalist", that's false, go look at the reflect package, it's complex as hell.
Go is radically minimalist compared to other languages - it leaves a lot out, most notably inheritance.