Late to respond, it's not being updated, they cut the content they planned to release and the latest version is considered the complete story.
Their reasoning (which looks to have been deleted, seems they didn't like the criticism they faced) was that they felt discouraged and that it wasn't fair that their game wasn't popular despite how they supposedly worked harder than other devs.
Stopped by because I was interested to see if they had any sort of response for, well, anything. Looks like they're still posting stuff to Patreon, no idea what though.