I am not at all sure I killed all the mobs. Everything for quite a large radius around it is dead, at least an area about 1/4 of the entire map but it's not impossible some have wandered further afield, into enemy AI territory. I _am_ quite sure I cleared all the goody huts and lairs, which according to what I have read is the real trigger to clearing the wildland despite what the quest log says. I sent hero groups one step at a time over each and every tile in the wildland with no additional triggers. Pioneers, as expected, still do not have "settle" or "outpost" options when in the territory. At this point the only thing I can think of is that the dragon lair still somehow counts as an active lair, even though it changed from the "lair" to the "resource" icon after I finished off the storm dragon since I did not actually step onto that tile until after the icon changed. Or maybe some weirdness relating to the version update that prevented the quest from completing.
I have completed this game now, but I'm curious if anyone else encounters it. I'll archive a savegame in case it comes up again in which case I'll look into reporting it as an intermittent bug.
