First time poster, long time lurker. I was very excited when Brandon announced that he was coming to Vancouver, since I've wanted to see him in person since I started reading his books about 3 years ago. I figured I would share what I think is new info from the signing.
-One person asked what metal Wax's earring was made of. He wouldn't say which metal, however he did confirm that it does have a "slight hemalurgic charge"
-He talked briefly about a collaboration between him and a military friend on a military SciFi novel which is in the works
-I asked him for more info on what he meant when he said that Stormlight will be organized as two 5 book series within the total 10 books. Understandably he didn't want to give much away, he wouldn't say if there would be a time skip or not. He did tell me that there would be a large change in tone between books 1-5 and 6-10. Also, he said that since book 2 is now going to be Shallan's, he wants Dalinar's book to be number 5. He then talked about how the 5 characters that were introduced in depth in WoK would be the the 5 flashback characters for the first 5 books and the others would be more focused on in the final 5 books.