Previously, we reported that TakaraTomy was teasing a new Raiden project at the upcoming "Railway Story In The Sky" exhibition being sponsored by various Japanese railway companies. That exhibition is now underway, and thanks to Autobase Aichi we've learned that the announcement is in fact a new Raiden figure for the Masterpiece Series. The Raiden exhibit shows a silhouette of the character, the announcement, and a pair of cases spotlighting the original Transformers: The Headmasters Trainbots as well as MP-44 Optimus Prime 3.0.
We'd been wondering what could top TakaraTomy's priority list for the title of MP-50 if Optimus wasn't it, and the first Masterpiece combiner - whatever size or shape that may take - seems like a sound candidate all told. We're looking forward to details on MP Raiden as they become available, but if you're interested you may want to start saving now, as the cost of such an ambitious figure will likely hit your wallet like a runaway train.