I think the conversation is getting a bit dragged into the weeds. I do think the WoL with or without the aid of the Scions would likely be able to find and end Zoraal Ja within the dome. What comes after though is a huge guess. With or without the relic, Sphene and the Alexandrians are a huge threat. I would also agree that without a son born to him, the command of the military would revert back to Sphene. However, considering this would all be happening much sooner timetable wise within the bubble, it is possible that Sphene would be even more open to discussion on the matter. Or given that she has less restrictions on her authority, she would be less open. It's a bit of a toss up. Ultimately, Sphene has more power and we have less information and no insider informant; but Living Memory has consumed less resources thus far.

If we break it down in terms of expected instances for an expansion then we would be short 2 trials and 2 or 3 dungeons at this point. I think Zoraal Ja would either be a final boss of a dungeon or a synced instance fight. Though if there is a dungeon inside the dome at this point, it would stand to reason that either WoL made quick capable friends inside or used the Azem crystal. Either way, it would be known that contact outside the dome doesn't work (largely due to the time distortion, though WoL may not know that yet).