The director, Jane Wagner (
https://twitter.com/janemwagner) has basically used the project as a way to get accepted into fellowships and workshops and bolst her own resume, in addition to recently relocating from New York to LA. Unlike when she was begging for money for the proect, updates are very few and far between. The last update we have is from last November, which is very ambiguous and doesn't give any timelines whatsoever. In my opinion it will never come out, and the reasoning it won't is because she will say "that Cecil video brought so much more negative attention to Narcissa and I ust want her to be able to move on with her life so out of respect for her we are cancelling the project." (i'm just using the nonsense "her" pronouns because that's what Jane would do).
Any time you ask Cosmo about the documentary he says he is out of contact and has no idea but to the best of his knowledge it is still coming out.