Haven't read the story since 3.0, has anything happened that either supported or definitively killed the schizo theory that the Black Swan on the train isn't real but instead someone in disguise like a different Memofag or Sparkle?

>Fables About the Stars Part 2
So the upcoming myriad celestia is supposed to be special like the one Black Swan did? Will this one also be narrated by a future playable character who the celestia makes seem really cool but they turn out to be an irrelevant brick?