I agree with this... but let's see what happens before we pass too much judgement. The echo could be the whole pre-hive instance, where oryx was still female. There could be some Harry Potter -blam!- where oryx put part of his being into various things, which we need to destroy/kill. I'm more disappointed with how they plan on wrapping this up into an episode... something that isn't a campaign driven update, but again, who knows!