I don't know, I think it was just kind of a nod to BB (that, with the episode title). So far it does nothing for the show. It just shows how he figured out who they were, it gets a Mike scene in there. I don't know that it added anything at all. It kind of felt forced. I didn't like it, the show didn't need to do it (unless something comes of it later). I doubt anyone is watching BCS that isn't 100% familiar with Breaking Bad. Maybe some angle comes up that we didn't realize before......something to do with both men having cancer (that seemed to be the hook).
Kim working for a sprinkler company in Florida? Yeah, that's a sad ending right now.
It's gonna be Marion that brings this guy down. LOL (though she is not listed in the credits for the last two episodes, but that doesn't mean anything. He deserves to go down. Ripping off a cancer patient, what a dick.
I don't think we'll see Gus again...................or maybe just one scene with Mike where he discusses who Walt his and tries to talk him out of working with him. We might get to see Gale again.