Did it say why it took so long or how long the next update might take?
If you want to see the post yourself here the link (it's a bit long) :
https://www.patreon.com/AugustEsoterica/posts/still-alive-tm-119728620
To summarize the latest post very briefly,
It says that the developer is struggling with mental health issues,
That if he can't enjoy the process of making the game, no one else will enjoy the game either,
That it's abnormal for development to take this long,
And finally, he states that no matter what happens, he's still working on it—or at least trying to think about working on it.
Because he says he wants to finish this game
I hope I've summarized it well.