So I've heard talk about this from people but nothing official from Blizzard, I've got TONS of this stuff and I'd love to be able to convert it. Is there an ETA on this situation?
Then you obviously didn't do any research before hand. Blizzard posted around the day of the launch (?) that they were allowing Blackfallow Ink to remain tradable for the next week or two so individuals could clear out their banks. No official date has been announced yet, but the assumption is you will be able to trade Ink of Dreams and buy Starlight Ink on the 9th after maintenance.