Any spoilers should be very minor. Nothing anyone couldn't have figured out for themselves.
First some minor stuff:
Lara didn't know about you know what. - Not that surprising.
Molly still keeping her job a secret. - Not really surprising.
Learning the capabilities and weakness of Butters light saber. - Jim has already talked about this in some interview or at a con.
More interesting stuff:
I correctly guessed Harry's relationship with the younger wardens. - Gratifying that I figured that out in advance.
We learn why Ebenezer really, really doesn't like the White Court. - This makes his scene with Lara in Turn Coat make more sense.
I was surprised that the major complication with Thomas occurred so soon. - I guessed it would occur about half-way through PT. I thought it would be a giant complication added to earlier events, but seeing as it was in the trailer, the timing makes sense.
Cristos looks more like a dupe than a major player. - I suppose that could change. Even if it doesn't, Cristos; sort of like detective Rudolph, could make himself a major pain that Harry has deal with or work around.
Odd questions and a disappointment or two:
One of the major players hasn't even shone up yet. - Unless, I missed something at the first meeting, I didn't see a description of any of them. This is odd.
None of the major bad guys, mystery characters and questionable players that I wanted to see have appeared on the scene. -
Sure, one of them could be operating in the background but that's not the same thing. I don't care that the semi-immortal shape-shifter guru from the Ukraine isn't at the talks, but I was hoping at least one really new and dangerous character (not in the short stories) would make their first appearance. I suppose we could get a late arrival.
We learned in advance that Kincade is no longer working for Ivy. Who is he working for now?
I surprised Jim hasn't set up several players as potential suspects for the major complication with Thomas.
How come no one's asked the obvious question yet, cui bono? - I suppose there are too many potential enemies who would like to set one supernatural nation against another, but still.
Potential bad guys:
Ebenezer has been set up as a possible suspect. He has the motivation.
We know from the short story Even Hand that Justine is far more capable than she appears in most of the novels. Who else could convince Thomas to do something like this? However, it's just speculation at this point.
Carlos Ramirez. I think his wounds go deeper than just physical damage. - In terms of a potential backstabber, not in setting up Thomas.