While I can understand why they'd want to start fresh in 7.x, it would feel a bit awkward to get all these teases and tidbits about what's been going on in over Ilsabard since even before 6.x but be left hanging even longer while we've still got the map obscured.

Depending what the nature of this "great change" is I could see that end up being the major focus over anything pertaining to political conflict, particularly if it's bringing some manner of new threat into the picture.