I think everyone's being a little harsh about Harry involving Molly.  He trusts her, and he was literally out of options to save his daughter.  A choice between saving Maggie/becoming a monster or being completely helpless while the BC and the Red Court took over.   Either way, his friends would have been in trouble.  Kincaid was a good choice, because he's a professional and he'd make it clean.  How would Molly have felt if he survived as Winter Knight, and turned into someone like Lloyd?
   My feeling was that he wasn't going to get out of that contract so easily, and since he was in the lake, I thought Demonreach would have something to say about it.  Losing everything in "Changes" seemed to be a good way to enable him to set up shop on Demonreach.
I only read the first 8 pages of posts, so someone else may have noticed this.  In the flashback with Shagnasty (maybe Harry is a namer), it seemed like he recognized Harry as something other than a wizard.  I got the impression that he was trying to take Harry out before he became more powerful. 
   re: Harry and Molly, the age difference between them is a lot less than between Harry and Luccio, so no agism here.  Karrin has too many hangups to be a good long term match for Harry, but she would be a kickass Knight (tiny, but fierce!).  Do you think he and Elaine will ever reunite?
   As for missing characters, I did notice Mac's absence.  He's not a major character, but he's always just there, being mysterious and competent.  Harry wasn't the only one wondering about Thomas.  I'm glad we got to see him at the end.  Any chance that becoming a Knight would eliminate his vampire traits, and reunite him with Justine?
   It's time to reread "Changes", or perhaps the whole series.  It just keeps getting more complex and interesting.  BTW, Billy should be a dad now (per the events of "Even Hand").  Does Harry even know about that?