Updates are indeed coming out. You're currently in the comment section of a post showing the content currently available in the upcoming update. And it is quite literally impossible to give out a release date. I can give you an estimation, but this is just how creative works, work.
When I started HH, I had nothing to do except develop HH. It's been 7 years since then, and I have a lot more responsibilities. Overworking myself is no longer an option.
The last update took a long time to come out for unfortunate personal reasons. v0.19 is coming along much better.