Re: The Joker sized elephant in the room
There could be some subtle reference, without having to mention him or his name.
Like how some Gothamites don't trust anyone or have gone crazy ( as the Joker himself said in TDK)
Remember in TDK, they talk about the Arkham psychos Joker has hired.
At the end of BB, Gordon is worried about the ex Arkham inmates who were still out there.
But in TDK, there was no mention of the LOS or RAG ( correct me if Im wrong)
Back to TDKR, they could also bring up the fact that all mob is locked up or killed