I'm still going with my theory that by being in the same place as The Dark One, The Creator, and The Pattern itself, he has gained some form of control over The Pattern that's outside of channeling.
Perrin's ability to shift between worlds is the only thing that he can do at-will. He can't use his will to influence things in the real world, only in TAR. I considered that, because it's the only similar thing that we've seen, but it just doesn't make sense.
Bao the Wyld, and the fact that Azrael is never going to let us live it down that he was Demandred.
Egwene dying. I had to put the book down and weep for a couple minutes. I kept thinking that it would get better, but it really didn't. I just had to keep on reading. She died gloriously, which...