Well yeah but they’re not ready to do [G.I. Joe meets Transformers] yet.
After G.I. Joe: Rise of the Cobra had a less than desired reception, Paramount took a new approach for the sequel.
Even though G.I. Joe: Retaliation was looking to have an even bigger response, that did has not stopped Paramount from continuing to explore an avenue for G.I. Joe 3.
They will eventually collide those two worlds and it’s probably when Mr. Bay decides he’s done with Transformers.