It's been traditional for IDW to release both prequel and sequel series for each of the Transformers feature films, and "Transformers 3" is no different. Coming in December is "Foundation", a mini-series leading up to the third Transformers film. According to IDW:
"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?!"