What's the roadmap for the future of Aether? What major goals & milestones should be reached over the short, medium and long term?

I’ve found a blog post from March 2018, but it delves more into the technical aspect of it. In my opinion, it’d be really nice if you could tell us here, or in a blog post, or better yet on a dedicated page in the documentation, how you envision in details the future of Aether.

Thank you!

(I’ve also asked this on b/Meta to engage the wider community.)