Update: No updates.
There haven’t been any updates pretty much because there’s been nothing to report. As far as I’m aware Lady Saiyuki has been MIA since January 6. No new “progress photos” have been posted since then and she’s made no attempt to refute anything posted here.
A Den of Demons poster who claims to be friendly with people at Bobobie says that the Serenity prototype was sent back to Lady Saiyuki as of last week, so presumably the doll will not be cast, at least not by Bobobie.
