The company commissioned to do the scripting has, after more than 20 days of work, given up completely. There is no longer any work in progress. They have come to the conclusion that Studio in its current form cannot be made accessible to a screen reader.
So no, there is no progress.
The major problems revolve around the editor, and the only option I can personally envisage is to use the SDL API to create an accessible editor completely from scratch, but that would be a mammoth project that could not be funded.