The odds of that being true are steadily falling, if only because there aren't many chapters left in which to have that revelation, and it's hard to see how it would improve the plot at this point.
On the contrary, tthe odds are increasing, since we're running out of opportunity for this deduction from the text to be contradicted. (^_^)
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 116.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)