That head looks quite good, but I sincerely hope that is no Attila. To me, the Attila is about the most iconic Cybertronic unit there is, and having such a different head would be a mistake. It really needs it's evil grin tbh.
So I'll go ahead and guess this is actually the Chem.IMN, if only out of pure hope.
I do, however, like that brotherhood sketch very much. It's very true to the style of old and gives me high hopes for upcoming corporate stuff as well. I also love what we can see of the shoulder pads on the second render of the Cybertronic unit as well. Those are the most important part afterall, right?
