Release date info has not changed since people last asked. Join the discord and see the progress chart updated each week. This was from yesterday:
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Progress is moving at a near similar rate as Chapter 6 - and that took nearly the full year of 2021.
The developer has already put almost 1300 hours into this update since January.
I personally wouldn't expect the update before for the end of November - and quite possibly the first couple months of 2023. Then, if it comes earlier, people can be happily surprised.
You can't rush fine art such as this. Even if you can get it much sooner, drop in quality would defeat the purpose of everything.