I actually like how the world titles are being hot potatoed lately. For the longest time we had to deal with overly long title runs we're due for a little hot potato action.
Not really a hot take but out of all the rouges, he’s the one who shouldn’t recur too often. After a couple stories with him he who needs to either die or give up villainy.
Obviously the fear toxin is his main gimmick but it shouldn’t be his only trick. I’ve been enjoying Absolute Scarecrow so far because he’s a master manipulator even when he isn’t using the toxin and I’d like to see that carry over to other adaptations.
I saw a post once saying that the way to make modern joker interesting again is to give him a no kill rule and I haven’t stopped thinking about it since.