Hello everyone, I managed to find the Procyon/Deneb's development team's leader. And not only that, but another sneak peek, this time in video form!
https://twitter.com/kiy_poke/status/1161222463251836928?lang=de
It also appears that there won't be anymore demos, the next patch will be the full game (It could be a mistranslation from my part though, so take this with a grain of salt).
Still no release date, but the development seems to be going smoothly because of new members joining the team.
Also, please avoid asking the devs for release dates or similar things. Majority of the dev team locked their twitter accounts because of people annoying them, so please refrain from doing that.