Regarding post-Zadnor stuff

You can get a second field notes for Lyon saying that some time after Dalmasca's liberation he suddenly appeared with Sicinius, dropped him off in Valnain for the Dalmascans to arrest, and then left before anyone could grab him. He also had Pagaga with him. So for whatever reason Lyon and Pagaga are rounding up the IVth's other on-the-run officers and turning them over to the authorities.

With this, Fran saying "Maybe next time you can help us in Dalmasca" to the WoL at the end, the reveal with Ashe's deal in Fran's field notes, the weapons Sicinius delivered to Gabranth in the last scene, and Gabranth very obviously faking his death, this doesn't feel like a "maybe we'll come to this, maybe we won't." Square very much seems to have set plans for continuing this story.