[quote=Asura]
I said Season 5, my boy. Plenty of time for the ship to leave port.
[/quote]

You said 'by' season 5. Not 'at' season 5, which would kinda imply that it happens sometime beforehand. And depending on the flow of time (Volume 3 is probably gonna be set within a couple weeks of Volume 2 if they care about showing the Vytal festival), then it's still possible that by this theoretical Volume 5, a full year may not have passed.