There has been some more work done on the enclosure since a couple of weeks ago. A little shelter has been put in on the slope, which I think is weird for lemurs. Some green cladding has started to be put on the dividing fence as well (not sure what the material is, or if it is permanent or temporary).
At the front of the photo is the viewing area (with some steps just visible at the bottom of the photo). Also just visible at the far left, on the left of what will be viewing windows, the fence has been covered in wood and the foreground completely planted - so the only viewing will be the area depicted in the photo above.
Although the idea is "supposed" to be for a walk-through lemur enclosure, I feel like the main part of the enclosure is going to just be for the lemurs with the visitors viewing through the windows, and the "walk-through" part will be the separated area (at the left behind the fence with green panels on it) which will be just for paid "encounters". I could be completely wrong of course, but that's how it looks to me at the moment.