JavaScript mixes in regular 'small but helpful' features while the big things like Temporal, Type Annotations and Intl Message Format get defined and built out, Justin Ridgewell @vercel told me in my new look at what's over the horizon for ECMAScript. I talk to @robpalmer and @littledan about how JavaScript gets developed in TC39, what Type Annotations bring from TypeScript without changing what JavaScript is and what the future directions for the language might look like https://thenewstack.io/whats-next-for-javascript-new-features-to-look-forward-to/
What's Next for JavaScript: New Features to Look Forward to

Useful types and modern tools to make internationalizing your sites and web apps easier, plus hints at what might come later for JavaScript.

The New Stack
I also talked to @ryzokuken and @_timchevalier_ and Romulo Cintra who I haven't found here and asked them to explain how Intl Message Format and the underlying Message Format 2 spec from the ICU will make internationalising apps and sites much easier: I think it really matters that JavaScript will help reach the next billion Internet users https://thenewstack.io/whats-next-for-javascript-new-features-to-look-forward-to/
What's Next for JavaScript: New Features to Look Forward to

Useful types and modern tools to make internationalizing your sites and web apps easier, plus hints at what might come later for JavaScript.

The New Stack