Work is going slowly on it. There's only a handful of us currently working on this, since it's a volunteer thing. We just don't have enough people willing to put in the time to get it done. All the monsters have their basic stats implemented into our pre-release files. But most of them don't have their special abilities added. It's time consuming, but not terribly hard.
If you (or anyone else) are interested in helping with that, we have a
whole tutorial on how to do it. We'd welcome the assistance!
The sooner we have volunteers willing to do it, the sooner we can get the file out to everyone.