I have Patron access and already downloaded it. Played through it 3 time already. I believe you will love it as much as I do. As a non-spoiler I will say it helps set the ground work better for Khemia and some background info on the characters and the history involved. And that's just the first chapter!
Also, love seeing Amicus and the MC together again (even if it is technically in the past). I really need that.