What exactly were Zoraal Ja's logistical war plans?

[Iscah]

If he just starts where he finds himself there's even chance he either starts in Limsa or Sharlayan; Limsa's not looking great for him but he might get the first strike, and he can absolutely overpower Old Sharlayan.

Sharlayan is probably a pretty good tactical target, depending on whether they're as peaceful as they look or if they're loaded up with defence mechanisms, and Zoraal Ja would have heard a lot about them from Koana.

If they are indeed an easy target, you capture them and you've got access to all their research and scientists and prevent them from being available for the rest of the Eorzean alliance to consult with.

Alternately his plan could have been to sail west from the western side of Tural – if you've got to build a port anyway, it can be put wherever it works best – and there might be a relatively clear path through the Azim Steppe and other sparsely populated areas. But I don't think we know a lot about exactly what is there.