If that is true and Raiden is not 50, then I expect a few more reveals in pretty quick succession. I can't think of too many times Takara has revealed these out of numerical order. Plus I don't know if this particular train convention would be the appropriate venue to show MP Arcee, Galvatron or Starscream for example. Don't get me wrong though as I would enjoy this greatly. Bring on more MP goodness!