I've always wondered which characters it'd be cool to see a crossover with. The Batman/Captain America dynamic in JLA/Avengers was really fun and would be awesome to see again. It'd be cool to see him team up with Iron Fist or Shang-Chi or work with Daredevil. Wayne and Stark along with him and Natasha would be entertaining.
But my dream would be Batman and Spider-Man. The King of DC and the King of Marvel teaming up would be too good to pass up
Is there any character you'd like to see him team up with for a potential crossover? Doesn't just have to be Batman. Could be anyone from his world (Dick Grayson, Barbara Gordon, Tim Drake, Stephanie Brown, etc...)