A new Joker GN coming up this year by Lee Bermejo (Hellraiser covers):
That makes sense. They need to put out something that corresponds with the upcoming movie. And since I believe Bermejo was somewhat involved in the design of the movie Joker...
...it would only be smart to have him do the book.
I will pretty much pick this one up. My only hesitation comes from the fact Azz is writing. I don't rate him very highly...