But if they're both in the same film, they'll cut into eachother's brooding time!
To be honest this seems like rushing into things, as people mentioned they don't really seem to have a plan and the existing Nolanverse Batman is a spanner of solid confusion in the works. You'll get a lot of people wondering what the fuck is going on with Bats (I'd suggest making this interpretation very different to the Nolan one), and I don't really think this has been set up properly.
To be honest this seems like rushing into things, as people mentioned they don't really seem to have a plan and the existing Nolanverse Batman is a spanner of solid confusion in the works. You'll get a lot of people wondering what the fuck is going on with Bats (I'd suggest making this interpretation very different to the Nolan one), and I don't really think this has been set up properly.