Yowza, 6 "story" missions and apparently it takes 3-4 hours to get through just that? Side missions and the like will be around as well, but those aren't usually accompanied by any cutscenes or anything.
Hoping this is a lot better than it sounds, because right now it's sounding like a pretty meager start to S2, which folks have been waiting for for years. And given that SWL hasn't been super exciting since it launched, this really needs to be a big release to try to generate/keep any hype going for the title at this point.