There’s a new interview with J.J. in Wired: http://www.wired.com/2015/11/star-wars-force-awakens-jj-abrams-interview
Pretty good read so far. A lot of stuff in there about the way the OT is structured and how VII fits into the continuum.
EDIT: Whoa dang, there’s also a high quality still of the Knights of Ren shot from the trailer.
