If there's no public Discord server, could you at least give the people who bought the game some kind of discord access, no patron stuff access just this game.
if you can't make a public part of the discord, could you open a forums section on the itch page and possibly show bits of what you're working on here? the lack of update news on both the itch page and twitter bothers me just because there's literally no news at all since the release of the game on those places.