Is there a roadmap for the API for Vectorize?

At the moment, the API is quite basic - it allows you do do simple similarity search, but is missing some core features like:

  1. deleting by index.
  2. filtering by metadata.
  3. finding by index.

I would love to find out if/when these will be implemented, and so to that end - is there a roadmap or repo I can take a look at?