So the wraith might not be defeated. But they might be cured of their need to feed! As Michael said: It will be the downfall of the wraith (not destruction). I really hope that this is exactly how the Wraith storyline will end.
Now more about the episode itself: Teyla looked very cool as a queen though her chin was a bit funny. Then - Apollonia Vanova was THE best looking wraith queen EVER. It's a shame that she had less than 5 minutes in this episode. Also "Todd" was great as always. We saw more "human" in him this time. I also hope that he will survive the series and be cured of feeding. So... let's wait for the end and see how it turns out for the wraith.