There is ?
Have I been gone long enough that the "Harry ends up with all three swords and they get destroyed in the BAT and none of them ever get wielders" theory has fallen from favour ?
We know that somebody will pick them up before the BAT, and that Amoracchius, at least, will survive until the beginning of the BAT.
From Marscon:
Audience member: Um, a buch of us have been chomping at the bit and wondering, um, who’s going to wield Amoracchius and Fidelacchius and [unintelligible]
Jim: Um, yeah, ok, who’s going to get to wield the two new Swords? Um, well really, not the two new swords, but the Swords that are in Dresden’s keeping right now, and are we going to get anything more about that from Ghost Story? Probably not, nah. (Laughter)
Interviewer: How…how long will they have to wait?
Jim: I…well…oh, uh, let’s see, we’ll probably get the new…we’ll probably get the new, the new wielder of Fidelacchius in Book 14 or 15. Um, Amoracchius is gonna, uh…we’re gonna…(Jim chuckles evilly), that’s…that’s gonna be apocalypse time by the time we get [unintelligible]. Amoracchius is not one of those Swords that really rampages around the world very often, and when if does, you’ve heard about it, so…(Laughter).