I have to preface this with the fact that I am OBSESSED with these games. I love the character designs, storylines, game mechanics, EVERYTHING. While I am cautiously optimistic for Gotham Knights despite it not being a sequel to Knight, it got me thinking about what I and others would have wanted another Arkham game to look like. Personally, I have two in mind. One which would have taken place between Origins and Asylum and the other taking place after Knight
Arkham Revolutions/Reckoning (I can't decide on the title)
One of the new elements I loved in Knight was the dual play sections. This game would introduce Batman's early partnerships with Batgirl and Dick Grayson as the first Robin and show those dynamics and how Bruce adjusts to having help. Thus implementing a day and night cycle to make the building of these relationships seem gradual.
The game would almost be split into different halves/stories to show a transition from more mob/assassin antagonists we see in Origins to the supervillains of Asylum onward.
More in-depth crime scenes similar to the Lacey Towers portion of Origins. Specifically, I'd want a segment similar to the Demon Quest episode of BTAS which would connect to Shiva's offer in Origins and introduce Ra's and Talia.
For being one of his most enduring rogues, I've always felt that Two-Face was criminally underused and think showing Harvey's disfigurement could be a good emotional element.
I'd like to see Warren White and Jane Doe make their physical Arkham debuts
Seeing Bruce and Selina learn each others' identities as well as an appearance by Holly Robinson.
As for the main antagonist, I'm leaning towards Bane, as his Asylum bio states him breaking Batman's back and that was never shown in series.
I wouldn't want the Joker to appear but the last scene would be news that a doctor (Harley Quinn) has helped the Joker escape Arkham. The damaged wing from the escape would be the one that the Joker would later torture Jason Todd in.
Arkham Legacy
Firstly, my set up would be the exact same as Gotham Knights, with Batman "dead" and a bit of a time jump with Dick, Tim, and Barbara defending Gotham as well as the Court of Owls being the main antagonist.
The setup of the game would be similar to GTAV where you can swap between different characters to complete different missions and advance the plot.
Gordon will have won the mayoral election at the end of Knight but his assassination will be the inciting action of the game with Renee Montoya taking his place as the GCPD contact.
Talia al Ghul would be alive, resurrected by the Lazarus Pit, leading HIVE with Deathstroke and we'd learn of the existence of Damien Wayne.
The plot itself would dive deeper into the history of Gotham and would link the Court as the catalyst for most of the driving actions in all six games. Most notably, the Wayne Manor explosion wasn't a part of the Knightfall protocol but set off by the Court and Bruce has been imprisoned by them ever since.
Anarky would return
While I know the identity of the Arkham Knight was met with a lukewarm reception, I was one of the ones who didn't mind it. My only gripe was how rushed everything after it was. Mainly Jason disappearing and then suddenly saving Batman. Psychologically I'd like to dive into his transformation more.
It would be the official ending to the series, tying all six games together.
These are obviously just my thoughts and a work in progress, but I'd love to know what you all think and what your games would look like.