Well, that's a good question
It's unfortuantely a bit difficult to give an ETA for the new API... once the world generation update is ready, we will probably have a bit more time to work on the API. What's still missing is the UI part, database handling and custom asset handling (models, textures etc, and everything related to that, e.g. WorldElements), as well as a bunch of events and functions
Ah so just a couple of weeks then?