Two comic book series will set the foundation for the storyarc of Transformers 3.
One series is the Transformers: Sector 7 and the other one is Transformers: Foundation.
Transformers: Sector 7 is a five issue saga by John Barber, Joe Suitor and Josh Nizzi.
“At last—the secret history of the Transformers is finally revealed, through the multigenerational saga of the clandestine spy group code-named SECTOR 7. Events in this series tie directly into all of the massive hit Transformers movies, but trust us when we say—there has never been a movie-tie in comic like this before!”
Transformers 3 Movie Prequel: Foundation will kick-start in December.
“The first Transformers 3 movie prequel begins here! The origin of the bitter rivalry between Optimus Prime and Megatron starts here! But what is the secret connection that will forever bind them? And how will it affect the future of all Transformers?”
So basically… One series will focus mainly on the Humans while the other will focus on the Cybertronians.
Checkout some covers :