I think overall what the new franchise needs is more consistency in terms of characterization, or at least better evolution of certain concepts.
Batman as a creature of the shadows not just suddenly dropping that approach with no real exploration, then adopting it again with no real exploration.
Bruce Wayne not just forgetting about his parents and their legacy for huge periods of time.
Things like that.
More memorable theme music - very much opinion when Zimmer's theme is as classic as Elfman's.
Come on now.
Look, I like Zimmer's theme. It's very cool. It's memorable, and it works well for the films. It's not remotely as classic as Elfman's, nor, by any objective standard, is it as impressive a piece of music.