It is a bittersweet time for Arrow fans today as the show had its final panel at SDCC heading into its 8th and final season. A few tidbits we learn from the panel include that actor Charlie Barnett who played John Diggle, Jr., a.k.a. J.J. last season, has been bumped to a series regular this season, giving fans hope that a spin-off show may be in the works. Check out the trailer below and share your thoughts AFTER THE JUMP. Arrow returns for its final season on Tuesday, October 8th, on The CW.