I would have expected that the Void expedition is going to run into some major problems, with most of the expedition team either cut off or aetherically corrupted. Hence the solo Scion as well.

If the next expansion ties into the obscured areas of Ilsabard on the map including Corvos, then that's where the Void storyline will ultimately have to connect into over the next few patches. Now if only there were people out there who knew more about dealings with the Void than we do...