It looks like one of the Transformers designers from TakaraTomy dropped a bombshell on twitter. While showing some images of the new MP10 Optimus Prime figure, Shogo Hasui also posted a picture of a rough Masterpiece Ultra Magnus. The image shown is a very rough concept of slapping armor onto the latest version of the Masterpiece Optimus Prime mold. Obviously, this is very rough, but it sure looks like it has potential.

Source: Allspark