I go back and forth on whether they were meant to be connected (since by the time Zurvan was out, they knew Ivalice was happening) or whether these were details that hadn't been decided yet and would only be connected afterwards, in which case we just wait for the ReVeLaTiOnS. With the oddity that is Ultima and the oddities that are the Sin Eaters, I'm in "Wait and gather more information." mode on this one. Let's see what Shadowbringers has to say about it. Word on the street is that Shadowbringers is here to fill pot holes and chew bubblegum.