Yup, Ramsey gave a talk at Clojure/north [1] about Arcadia. I got a chance to briefly chat with him, and it looks like they actually managed to raise funding to develop it further.

And somebody made Arcadia bindings for Godot [2], but the project isn't actively maintained. Would be great if somebody picked it up again.

[1] https://www.youtube.com/watch?v=LbS45w_aSCU [2] https://github.com/arcadia-unity/ArcadiaGodot