Thanks Tyler for the info on the scarecrow DLC challenges. They were much easier than some of the others, so free stars make all the other challenges easier, I can pretty much just 2 star 7 challenges now, less if I go back for the other 2 stars I missed, missed one by 2 seconds.
As for the identity of the Arkham knight, be prepared to be disappointed. If you have any background knowledge of Batman it is exactly who you would think it would be. And not spoiling that because that part was pretty dumb.
One of my friends is close to the play, however he can't get the takedown trophy that I have and it extremely rare, still don't know how I got it so easily. I pretty much have cleanup, I'm at the end of the story, and then the Ar challenges I'm at 45 stars. Then I will definitely try out new game plus.