I read your story and I am so sorry you have to be here. You have been through so much. Clearly you are a very strong person. I am amazed at all that you have made it through. Many would have simply folded, but not you.
Regarding the timeline- I don't have insight here. My WH says he has his timeline ready but I can't read it yet, I am afraid of hurting more.
Perhaps part of your depression is processing time. Seeing all his betrayals in black and white, and how he worked them right into your lives without you knowing, must have been very difficult. but - nothing stays the same, does it? This won't either. Be gentle with yourself. This will pass.