Release date for "Arcane Unleashed"?

All we've been given in the roadmaps is that the new book/content is scheduled for September release. If that's still true, when will the pre-release ordering begin? I have 2 tables with players who are very interested to see what new options are coming.

We’ve not had nothing confirmed as far as I know but based on past experience I’m guessing preorders will go live in August, early access will be the first Tuesday of September, full release two weeks after that 

I know they plan to make a lot of announcements at Gen con about the upcoming year. That’s late August, so cutting it close on a September release, but I’d bet if we don’t hear anything by then, they’ll announce it then. 

They probably don’t want to start showcasing Arcana Unleashed until Ravenloft has had its time in the spotlight. (Even though Ravenloft would much rather be lurking in the shadows, its features barely hinted at by the light of a single guttering candle…)