Personally, I really want to see a Batman movie where the character is written as a detective. I'll admit I don't know much about the comics, but I've been told that in the comics, Batman's deductive skills are often his "super power," and I would love to see an adaptation of him that takes advantage of that. (We got little bits of Batman doing detective work in The Dark Knight, but not much.)
If I were writing a batman screenplay I'd probably base it around The Riddler as a villain, and frame the whole thing as a fun, suspenseful mystery story that happens to center around iconic Batman characters. The fact that this new movie includes the Riddler seems like a good sign