Been silent here for a while, sorry about that. I've actually made quite a bit of progress on the format, still FAR off from complete, but the end seems to be in sight. I'm almost to the point where I need to document the cutscenes, and event specific flags (I.E. The light columns) However I even know the general location for those as well.
If anyone would like to help, grab a save and start poking around in the file, post any findings here and I'll look into them.