Season 9's theme is "Clark's darkest hour." [...] Chloe, still grieving over Jimmy's death, will immerse herself in all things Watchtowerish. Peterson also hinted at some tension for Chlark when she realizes she's no longer content just being his sidekick. We'll find out why Clark isn't flying in a scene with him and Jor-El (the returning Terence Stamp) in the season premiere. [...] The episode they're currently shooting (either 9.02 or 9.03) focuses on Oliver's downward spiral. Battlestar Galactica's Alessandro Juliani will reprise his role as Dr. Emil Hamilton for several episodes this season. Story-wise, Peterson is not approaching this season as Smallville's last. "I saved the best for last": Peterson recently had dinner with Michael Rosenbaum. Interpret as you like.
another producer kelly saunders added this...Kelly said they do have a series finale planned if the ninth season is their last; however, it could change if they are picked up for a 10th season.
can they squuuueeeezzzzeeeee one more season out of Smallville? is this the right direction for the characters? we shall see..........