Minor spoilers for VC1:
[spoiler]at the end Radi Jaeger hinted that he would return to his homeland of Fhirald and start a rebellion there[/spoiler]
Minor spoilers for VC3:
[spoiler]and in a DLC mission in VC3 hints at this too, with another old man in the party going off to help in these efforts too[/spoiler]
So I feel like it's fairly likely this is going to be about the Fhirald rebellion and be a true sequel at last