Your goal is going to come down to your current diet. Are you currently at a caloric surplus or deficit? how far along are you into your 8 week run so far? Depending on that, I may change my position below and say add EP.
Anyways, I would not add anything else to that stack.Finish it as is and then take a 4 week or so break. If you're currently at a surplus, you could start transitioning to maintenance calories during that time. After your break, you could add AlphaMax at a caloric deficit. Depending on how lean you already are, the Arimistane in it will help you with that lean look. Also, the increase in free and total test will help with maintaining strength and size. I would go on a smaller deficit versus a larger one so that does not become an issue. I would also run it for 8 weeks total.
Edit - Also, do not think more is better. It is hard to determine which supps did what once you start running 3 or more at once. For some reason, there has been a large movement on the boards to run several different things at once. Your stack right now, with ABE and ArA, is a great one.