It has so many varied locations now with the Menagerie, Underbelly, Spire of Stars and the rest that with a few more connections and tunnels it would make for one enormous and cool patrol space complete with a NPC vendor (finally add Gus the slovenly) and even unique public events.
Consider.
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The public events could be watered down versions of the real raid encounters. Gauntlet without the having to shoot the buttons, with a boss to kill after you get all 3 runs in. Dogs, but without the stealth mechanic, and they have more health. Baths, but instead of switching off plates every so often, 4 players just stay on their plates for a certain amount of time, and the lanterns have more health. It'd be pretty dope if you ask me.