I know that there are seven seasons planned. In my opinion the show has strayed far from the intended/original and actually feasible story arc. Gemma and Clay should be dead by now based upon the progression of the story. However, Sutter, who is booked for seven seasons, has kept them alive, as without them there is no show. My point is that Sutter can conceive, envision and create great dramas. When it comes to the actual writing and execution of the story he is terrible, especially in the later seasons. Again, I reference The Shield's closing seasons.
He should have wrapped up the show this season. The next two seasons will be filler that will degrade the overall quality of the show.