The ember community has really embraced ES6 modules and now with the introduction of broccoli[1] and the broccoli-es6-transpiler[2] it's really easy to start using modules and the other ES6 features right now. If you're already using SASS or Less then an ES6 transpiler seems like a natural next step.

[1] https://github.com/broccolijs/broccoli [2] https://github.com/sindresorhus/broccoli-es6-transpiler