I do hope we see NOTHING like the last few episodes of angel, the good guy goes full bore bad guy just to see exactly who is pulling strings, then attacks from within. Great idea, but harry isn't that kind of manipulator. Not to mention the type of crew he has cant be chess pieced into the right place to cause real impact.

We've seen Nic call in his favor from Mab in Skin Game. If I'm Nic I would love to get Ivy just to have leverage over even more people. Also, ever wonder what he did for her, seeing how we've read what Mab's repayment allowed him to achieve? Maybe she's Queen of Winter because of him? Or a severe threat to her throne was thwarted thanks to him? 1000 years ago was a completely different white council. What might they have been like? Possibly writing the last of the laws? maybe there were only a few, and the disasters they saw caused new limitations to be decreed?

Unless Molly gets ahold of them... Which means anyone else with that type of skill using mind manipulation on the Archive would screw up the history books from then on.

What resource might have info on the time period in question? Ivy? Maybe Bob? Bob's memories can be locked away or forgotten as we've seen. Can the same be said for Ivy? Is there any data loss from Archive to Archive? Perhaps sensitive time periods are redacted to a certain point? Or even classified enough that Ivy doesn't have access.

Forgive my memory, but since Bob's signature color is orange. Has Bonnie gotten a color yet? Since labor pains were some of what Harry's headaches were originating from, have we seen a Bonnie color already perhaps?

I like this. But, I'd nudge it further and suggest that since we don't know how far into the skid Jim will steer, theoretically we can call anyone that hasn't been identified as Dresden. The british sounding guy in the prison, cowl, even demonreach itself. Lots of people have their evidence loaded and pointed towards the original Merlin. But if there is time manipulation coming, then I'd like to suggest the movie Paycheck's premise. Everything Ben Affleck critically needed was provided from a future version of him. So lets say that Harry is at the End of the BAT, and (mixing my movies in a blender here) pulls a Matthew Mcconaughey in Interstellar, sending the past messages to produce the proper outcome. Jim has let us see through Dresden's eyes and thought process about the boundaries of his world that have become further and further out. Now the outer gates and outsiders are the limit. After that...?
Any nagging little bits from previous books come up that by themselves are innocent but by looking at them from a point of view of hints at what's beyond the outer gates? Or what can be bigger than Odin, or Hades, or angels, or nickel heads or knights?

Another way to view it would be that there are many different parallel bubbles/realities that are 'mixing'/bouncing into each other.  And, we will soon get to find out the 'correct bubbles' that define the path of events we are reading

Good point, and to follow on that. A great way to make sure Harry(himself) and anyone else knows what the right bubbles are or were would be to write down what actually happened, which could be what we've been reading the entire time. A Harry that is trying to get it all down for posterity. So possibly we've been reading the aftermath of the BAT from Harry's pov, who could be lost in the flow of time somewhen, and whose only connection is Ivy who is making sure that communication is being transcribed.

Thanks for the welcome. And yes, Small Favor sounds right. and on a separate note, when Jim has stated that Mirror Mirror is 1 choice different, has that been clarified as to when? Because I think the choice to rebel against Justin would be a great one. A brand new Dresden right from the start