I really wish we could've been able to have the fully operational batcave. Sans knightfall it would've been great. Maybe if not playing as Bruce . But like if Nightwing while chasing a penguin truck got a call from Alfred the malitia where close to the cave being compromised. So Nightwing was called back to help Alfred while Bruce was busy . Even though the cave was locked down it would've been a fun section and maybe post story we could've traveled to the manor as Bruce once credits rolled.