This is something I was poking at on and off for about a year or so before really scrapping it for good. The earliest iterations of this project are all the way from ~Jun. 2016, so yeah, they're old.
So what happened here? It's just a case of shifting priorities and quickly moving on to the next hot project, really. Plus I think this project became less and less exciting to me as I started to refine it a bit.
Might give the concept here another try some day after I update the Human/NE models to SL quality.