https://directory.libsyn.com/episode/in ... _id/759877
-Toys were being made 1.5-2 years before there was a comic considered
--Oh. No, it was totally, uh, because of the 35th anniversary for both Transformers and Ghostbusters. They had decided to do a toy and these things take so long. The toy was in the works, yeah, year and a half--maybe two years ago. And, um, that's how long it takes them to design and--and tool the molds and make everything work to mass produce these toys. Uh, so it was in the works for a long time and as we got closer, they said, "Hey, why don't you do a comic? Because IDW has Transformers and IDW has Ghostbusters. And it's the 35th anniversary. It would some thing fun. Let's do a story."
-"And um, other---other ghosts, uh, from the Transformers side will show up later on."
-Grimlock will say