If anyone has been through the NEST Hub, with a bunch of concept art, it's absolutley amazing. - Soundwave's section is absolutley spectacular. Some of the designs they had, had the vizor, shoulder gun, and ejecting chest. The "Chevy" version of him is actually really, really nice. - Devastator's section is rather interesting, and you can tell that they originally were looking at a more humanoid form for him. NOTE: in the pic with all of Devastator's components, you can see a Ben Procter form of Overload, with bi-pedal legs (it looks even better than the quadraped one). This is why Hasbro probably went with that robot mode for all the marketing. - Unfortunatley, the Twins were always going to be stupid-looking, no changes really. The only interesting thing is there, at one time, was planned to be a "Smart Car" triplet to Skids and Mudflap - Bumblebee has some GREAT concept art, showing how insect-like they were thinking of going for him. He had many different head variations. Some screencaps would be great, and I can't wait to see the concept art book when it gets published!