It should be noted that all of the Capcom Mii Costumes that have returned showed up in "random" Mii Packages, while all of Bamco's took until Volume 2 to show up. I don't see why the Monster Hunter costumes must be attached to another Capcom rep, or anything that would have anything in common with Monster Hunter rep.
In fact, the last time we got Monster Hunter Mii Costumes, the wave they coincided with was Pirate Ship/3DS Duck Hunt/Mario Maker, not any new fighter.
Same goes with Lloyd's, actually. Did not coincide with a fighter, just the N64 Castle stages.
I think using the Mii Costumes to "predict" a Capcom/Bamco rep because they HAVE to come with somebody from the same company, and not at any time or in any pack with any other connection, is a good way to turn the missing Mii Costumes into red herrings.