The Fae cannot lie, but they can be mistaken. Does being fae grant one absolute self knowledge, or can they be mistaken about their own intentions and motivations, and thus "lie" to themselves?
Re: the above question, when Lily said she had not chosen, was she correct that she had not chosen her human or fae heritage, but that in accepting the Mantle, that choice was made for her? (see also actions determining other Scions choices)
At this point in time, can you give us a general rundown of Harry's strengths as a magicican? He was especially skilled at thaumaturgy in the beginning, not so much evocation. Has that changed with a decade or more of being in novels? Are his multiple necromantic feats evidence of any special skill in that field, or just stuff he gets away with because of special circumstances/it's awesome?
Would you say that in general, Power and Purpose are linked? That creatures that are outrageously powerful are so because they attach themselves to a specific purpose, like a train that is incredibly powerful, but only on train tracks, vs a car that can go on any roads? (The metaphor being expandable to derailing being entirely intentional.)
What would happen to someone who spends a year or more in the nevernever, eating nevernever food, breathing nevernever air, then returns to the real world? Do they get sick/die as all the ectoplasmic stuff in their bodies turns to goo, or does it metaphysically become one with them?
Just how pissed will Charity be?
Are we going to see any stories from Morgan's PoV? Set a while back, obviously, but I'd love to see him do a Dungeon Crawl on some magical bad guys. Kick in the door, and apply sword, fire, and boot to ass all up and down the battlemap.
If Harry had had the presence of mind to throw a Death Curse, would that have caused problems for him re: meeting Jack, and setting the plot of Ghost Story in motion? Or would it have progressed the same, + changes from the affects of his curse?
Is Joe the janitor at the train station in Small Favor actually just a janitor, or is he, like Uriel, an angel in disguise?
And if so, is he Autobot or Decepticon?
Will we ever see some of the Supernaturally clued in mundane authorities in action? Or does that not fit Harry's idiom?