I'm totally calling dibs on this one. :P
I talk about this with one of the site admins of westeros.org from time to time. It seems to me that GRRM likes to put a ton of little teases and hints that you can only find if you read between the lines (see the blacked out
spoiler(?) part below, for one example).
Anyway, thread rules: Spoilers are allowed (and actually encouraged), provided you do the relevant work to hide them. In other words, don't clog the forums up with a bunch of linefeeds.
It's not hard to highlight the relevant parts and change your color. Honest.
So, let's begin with a couple random blurbs as of the end of A Feast for Crows!
Who else feels that Rhaegar Targaryen and Lyanna Stark are Jon Snow's true mother and father? This is one topic that took me a while to accept, and Martin seems bent on trying to trick people into following another line of thinking with each book. Yet there seems to be fairly strong, but very subtle evidence (Eddard Stark's flashback of Lyanna's death) that points toward Daenerys having a half-nephew. Which then leads to the question: Will Jon end up as one of the heads of the dragon?
Cersei: Owned? I'm personally of the opinion that Littlefinger may have had something to do with the installment of the latest High Septon. I can't recall what led me down that line of thinking, and I don't have the books on me to be 100% sure of this.