Remember that last time Voldemort disappeared, the death eaters ceased being dangerous because they were in Azkaban/hiding/or too cowardly to act. I don't see that it would be different this time. The Death Eaters aren't too much of a threat without Voldemort himself there. They chased them down and put them in Azkaban, I imagine. I mean with Kingsley in charge, who is like the badass Samuel L Jackson of Wizards, I'm sure it didn't take too long.

I wish we could have at least seen what was up with George and Luna. I think seeing those two would have made it just even more perfect than perfect for me. However, I'm sure someone will ask in an interview and she'll spill.