Check out this SpoilerTV chat with Hart Hanson. It doesn't look to be part of last week's round, it's all new.
Some of it is very spoilery, but you can definitely read the first section without worry, and here's a snippet from the rest.
Were the things we'll learn about the characters always part of the plan, or made up as the writers went along?What do you think? I'm personally interested in some of the hints in the 5th section. Sounds interesting...
“We pretty much knew Brennan and Booth’s, you know, the things that formed them. The Squints are another kettle of fish. You kind of see where those characters go and then reverse engineer. You know, we, we find out a bit of where Sweets came from. We have an upcoming story that is very, very centered on Cam, just to see some of what she’s gone through and that, that, that of course did not exist at all when the character first arrived. Angela we kind of knew and Hodgins arose, his back story of being wealthy, arose out of, out of plot. Angela arose out of character and so we’re going to deal with all of those as the season goes on just and hope it stays fresh for people.”
Thanks to Jeannie for the tip!