So basically half the game is set in Arkham City before it became dilapidated and turned into a prison...hmmmmm. It needs to be nearly unrecognisable from AC to ensure we don't feel like we are playing a rehash of the same environment. The screens so far look very similar if not identical to the Subway area from AC, which lets face it was nothing like a city. Arkham Village is a more apt name
Gotham Citizens should be present and terrorized by Black Masks and Penguins Thugs. One thing the Batman games need is the ability to save a citizen with them completely oblivious to Batman's Presence. Remember all the dialog from the thugs in AC. Maybe in Origins you will be able overhear Citizen dialog, discussing the rumours of a giant bat/ dark shadow saving people.
Helping out with random events sounds interesting but in Batman's early days the GCPD weren't exactly thrilled to see him. WB Montreal should incorporate this into these events. Would really love it if car chases were some of the events, where Batman glides onto speeding cars and has to punch his way through the windscreen to pull the thugs out of the car and leave them for the police.
Ill resist the urge to continue...I think my Batgasm has reached its peak