Season 3 concerns

Let me say that I love the first 2 seasons of this show. It hasn't let me down yet. However, I do feel a bit of a concern just with the details of season 3. The whole thing about the brothers, one being the golden child and the other being the screw up, immediately makes me think of the brothers Nyguard. However, I trust the show enough to do something unexpected with it. Which is why I think that the good brother will end up murdering the brother nobody likes. But I could be wrong. Also the female officer that's 2 steps ahead of everyone else, is also something we've seen before, twice. I'm hoping the show is as good as the first 2 seasons. I just hope the third season isn't where the show takes a dip. Especially because I love the casting so far.