I not sure about Western cartoons, but anime episodes are not produced weekly, most if not all of a season is made like 6 months before the first episode is aired.
That's not how it works, unfortunately. It heavily depends on the studio, and even then work usually continues until the night of the broadcast. Sure, initial work can begin anywhere between a year and six months before release, but it rarely, if ever, is completely done with a nice buffer (say 2 weeks) before the night of release. Anime production in japan is, in fact, notorious for its abuse of workers when it comes to crunch. Japan's work culture is, in general, like that - but anime production is infamous for this. Strange that people still choose to peddle this narrative that anime is done 6 months before release.
But that's off-topic, really. What I initially came back here for was to see if any progress was made on the game (last played it maybe a year ago). I understand that there is no update, but is work even being done? Either way I'm glad I never decided to financially support this author, it's very irresponsible and straight up deceptive to drag a project out this long considering how much money you have to allocate to complete it in a timely fashion. Hire more people to the team, cut down feature/character/story creep and just get it done.
Like recently I've revisited "Last Hope" and was pleasantly surprised that the game was finished, had a clear and succinct scope and the author was moving on to create another game. This endless milking of a lich-cow that seems to be both dead and alive at the same time is so pervasive in NSFW game industry it's sort of an expected outcome at this point. Same story as with "What a Legend" and so many others. Shame, really - especially since this game actually has decent art and quite a bit of content. I suppose it has to have that, as a foundation, if it wants to continue duping people into thinking that it will ever be completed.