There are now two new editions of the scriptures in JSON: flat and reference.
The flat edition is a flattened list of verses which makes it easier to iterate through the text for textual analysis and similar applications.
The reference edition structures the text so that it’s easily accessible via key:
data['1 Nephi']['3']['7'], for example. (Thanks to Jon Faulkenberry for the recommendation.)
In the repo there are also the two Python scripts that I used to generate the new editions from the base edition.
Old and New Testaments are still forthcoming.