When Will There Be A Transformers 2 Trailer?

“Probably in fall — maybe late summer…”

…says screenwriter Roberto Orci, who revealed it over on on DonMurphy.net

He was also asked whether we would see robots transforming into weapons, as in the original cartoon Megatron transformed into a hand gun which could then be fired by other robots. Orci claims that it will not be Megatron specifically, but robot to weapon transformations will take place.