Some interesting news for you now. A solicitation document from Takara-Tomy is doing the rounds, detailing items for the new mainline Transformers Prime series from Takara-Tomy. This document appears to confirm that an Airachnid toy is in the works! The bottom left corner of the scan also shows a (very, very small) picture of some prototypes, one of whom was identified as Breakdown.
So far, so groovy. Next up, there are some pictures of some new Mini-Cons. These are new molds, and seem to be more like Targetmasters than ever before. These would be the same ones seen attached to the remolded First Edition Optimus Prime in this news story. Now we know what their secret is!
Now updated with a clearer scan from our sponsors TFSource!