Which is why I suspect Garlean Empire as 5.0 if Ala Mhigo is 4.0.
The only thing standing in the way into the Ilsabard is the Garlean Occupied Ala Mhigo.
We also have the Castrum fortress that may allow adventurers into Ala Mhigo region under Gridania's control due to the events of 2.0 when a army of Gridanians and Sylph took it over during the miltary operation.
