Version 0.9 should be coming to the patron edition in mid-June and to the free edition in late-June. I will be updating the game about every 6-8 weeks.
Most game content will be available in the free edition. I will be adding mod support in the next few months, and that feature as well as several test mods will be patron-exclusive indefinitely. Additionally, the patron edition includes cheats and some minor convenience features. All core game content will be in the free edition though. It’s my goal to make the free edition feel complete and the patron edition feel like it has extra stuff, not for the free edition to feel like it has missing pieces locked behind a paywall. It’s a hard balance but I do think of Succubus Stories primarily as a free game funded by player contributions rather that a paid game with a free version.
The game’s story is about half done; it will be five chapters, a prologue, and an epilogue, and as of v0.8 we’re halfway through chapter 3, so pretty close to the middle. I will be adding endgame and postgame content, including a new game plus mode, and only about a third of the planned requests and activities are in the game, so while the story is half done, I will continue to work on the game for quite a while after the story is completed.
Sorry for the lengthy reply, but I figure I can link to it for similar questions in the future so I may as well get it all out here.