As the dev stated a month ago on itch.io:
"Hi! The plan is to spend about 3-4 months on each chapter. Currently there's a second chapter on patreon. The next chapter will be ready (hopefully) in about 2-3 months."
I guess we'll get to see the next chapter somewhere in Autumn.
Also I can't help but to admire the dev's strategy. The plot is simple. No complicated stuff to rewrite/redo in the future. It is very important.
If the production will go smoothly, I'm almost sure that we'll get to see the final version. Unlike the most old-timers here, celebrating their 5-10 years of being in developement. Like we're living in the 70s and the life out there has a no-hurry, steady pace. You can feel that the dev has a knack for the game design. Actually I'd like to know more if this is their first (public) project?