I'm sorry I'm still not sure I'm grasping the essence of your query? If you could get your mitts on an Energon Omnicon Arcee it's possible her head might be an easy swap, OS Slash's head is a roughly 1cm³ FYI. I'd crosspost my reply to @Loosecannon here: Whilst also adding you might want to wait out the Studio Series '86 as at least Grimlock & Slag are slated to pop up in the line, though as yet there are no guarantees of the full team getting done. I'm not so sure about a fresh, new take happening. Not writing off the possibility but corporations like Hasbro seem to be very much about consolidating IP when it's working rather than fixing what isn't broken. If the sales were tanking, then the New Broom appears. I reckon the shape of the next trilogy will be very much informed by the performance or lack thereof of the Netflix series, I mean if it tanks viewing wise it might even have an impact on Kingdom.