Plug — for anyone researching or otherwise interested in visual languages like Luna, I keep a collection of projects, papers, talks, references, and other related media here on Github: https://github.com/ivanreese/visual-programming-codex

As for Luna, it seems like they've gone quiet for the past while, though I believe they're still hard at work on the project. Hopefully they can improve the stability and performance of the program, because to date I've found it almost unusable.

For a similarly interesting project (albeit not visual in the same way), I recommend people also take a look a isomorƒ: https://isomorf.io