also apparently theres some drama between the studio and old devs that people on reddit are really butt mad about but i cant be assed to figure out why
Disco Elysium started as a book which did not sell well due to being Estonian and extremely dense. The author started a communist dadaist art group called ZA/UM, and reused the novel to make a video game. While they were in the commune making the game they were getting bankrolled by someone using the video game to launder money, the plan being that if the game broke even or even lost money, it still laundered the money. It's unclear whether or not the art group realized this at the time.
When the game came out and blew up, the first thing the art group wanted to do was actually finish the game: the original release was even more jank than the version Josh played and would cripple a reasonable computer because of how terribly optimized it was, and the voice acting was only the first paragraph or two of dialog for any given character. They also added a side quest for each political stance.
After that, the owner wanted them to stop spending the profit on making the game better, and everyone sued each other.
The people at ZA/UM are now scattered across new companies:
Red Info Ltd. is where the original author and main artist ended up, plus one more author. Rumor is that Chris Avellone (New Vegas) may also be working there. They do not have any rights to anything Disco Elysium. To my knowledge, the only public info on what they may or may not be working on is that they filed for a trademark for a name. I think fans of Disco Elysium are mostly excited about this one.
Dark Math Games has the producer and publisher. They've got a game in development, "Tangerine Antartic," that seems like it might be the same sort of game but scifi, and I think at one point it was supposed to be pornographic. I don't think anyone has any animosity towards them, but I also don't think anyone is looking forward to what they do.
Summer Eternal has two of the original writers, one writer that was hired to write on the Cuno spinoff game that got canceled when the company exploded, the sound designer, a graphic designer. The voice actor that does the internal monologue voices in Disco Elysium is working with them under contract. My understanding is that this is essentially the art collective minus the original author and artist. They're also working on an RPG to be announced this summer via some sort of artbook and vinyl record or something. This is the other company with good will from fans.
Longdue Games has an editor and one minor dev. They also contracted the same voice actor. They have a game called "Hopetown" in development with "from creators of Disco Elysium" plastered all over it. Reddit hates them, but I think mostly over reddit janny drama or something.
ZA/UM is still around, and has basically everyone not mentioned above, including the Executive Producer, the money launderer guy who is the accountant and legal team, a couple of artists, an editor, and the voice actor director. This is the team that still owns the Disco Elysium IP, and so far they've made an Android port of Disco Elysium and Zero Parades. No one likes this company, to the point where most of the fandom encourages pirating the game as opposed to paying ZA/UM.
The real sequel to Disco Elysium as far as I'm concerned is trying to follow what happened to ZA/UM, the surrounding civil and criminal lawsuits, the documentaries clearly biased in different directions, etc.