So believe it or not, there is still a paid DLC expansion to this game in the works. myuRanRan has been working on it on and off since 2017, and despite hitting some setbacks in that time, he's now determined to have it done in 2020 ('before the 2020 Olympics' is his tongue-in-cheek comment on livestreams). Most of his livestreams are pretty in-depth 3D work and wireframe stuff, lots of keyframing, things like that. So while it's fun to watch in the background and be able to interact with him a little, there's not really much to see. But on the last livestream he did, there did appear to be some spoilers.
In any event, I'm as excited as anyone to see more progress, and I hope it does come out this year. I could use some more Liru in my life.