Well, yea, it's a tough nut to crack, never said otherwise.
Who says the next wave will be exactly the same as the last? The bug meant that monsters: weren't looting, weren't doing takeovers, weren't rallying, weren't moving, and weren't spawning. Now that it's all unbugged, we could see a new unprecedented wave wash forth.
Last time, you didn't have a war in the East, you could focus your armies where the rogues hit. Now there's Westfold that is still in play. And who knows, HD or other neighbors could decide to try to take advantage of the rogue invasion to attack Astrum and help Westfold recover? Is it likely? Not really, but it's still a possibility. Still choices to make, though, if you send your armies West then Westfold will certainly take advantage of the opportunity to reclaim some regions, with or without any help.
