Here's hoping Stargate: Atlantis has legs. Even though the last few episodss have impressed me about as much as the late first and second season of Enterprise, I think there's potential for developing the Wraith meta-arc into something epic, cf. Babylon 5. Are they up for it? I doubt it, as there are not too many Straczynskis and Whedons writing for sci-fi these days. You never know, though.