Roberto Orci helped write Transformers 2.
During a recent forum Q&A at TFW2005, it was apparent the scribe was hesitant to give away too many spoilers, but he did open up about the motif behind the sequel.
"One of the themes is about the responsibilities you face when being away from home - reflected by Sam [Witwicky, played by Shia LaBeouf] going to college and by the fact that the Transformers themselves, are of course, far from Cybertron."
Orci also said that Revenge of the Fallen will be darker than the original, while adding that the villains "will get more screen time than before."
Transformers 2 is due out June 26, 2009.