It might simply be either getting "Called" phasing in and out of a zone. A Omphalos/Eden Campsite.

Or simply travel to another star.

But really no way to tell, and since both are "Running" they really could wind up doing something really Fky with the story for the Alliance Raid.

Unlike with other FFs which get tied into a story, or get item references.

XI is The OG FFMMO, there honestly could be longer term interactions.
[I just hope story wise, it's a different star. and not a Hydaelyn Sundered Reflection.]