I’ve created a pull request on the emmet-objc github repo, to start a conversation if nothing else. Alas pingyang’s original pull request is still sitting in their queue https://github.com/emmetio/emmet-objc/pulls. I doubt I’ll hear from them, and so I don’t think there will be anything official.

There's just a single developer that is working on Emmet. You can contact him on serge.che@gmail.com or https://twitter.com/chikuyonok . Good luck.