I was asking the same thing myself over in the other Spoilers thread... I think it is possible.
I just finished the first two books on a reread. I am always somewhat appalled at the damage that Harry takes in these books. It is a very good thing that he heals up pretty well. His healing from the hellfire burns on his hand is taking a long time, but considering the damage, it is still pretty miraculous.
He may not have a lot of finesse, but he has guts galore and he will blow you away with his raw power. I just wish he would work out a little more and get some beef on that overly lanky frame of his.
Lasciel shadow seems to be gone - but that doesn't mean she didn't leave a present - then again you can never ne certain how this will be played out.Oh yes, does anyone think that there is still a piece of Lasciel in Harry's spirit? That last scene when he played the guitar so well made me wonder.