It's funny how each time we've gotten a new trailer, we have observed something new from the specific arena. The picture alone tells a lot. It seems now as if the vague dude was a "Half-Life 2" style police officer.

Although, keep in mind that even Noob Saibot was hid in midst of boring NPCs thus in that sense this is still open, though not close as likely any longer. On another note – will the game be set in future or what's with the hovering cars?! The city seems also to be filled with surveillance cameras – with Superman as the "Big Brother"? – and in the background there appear statues that have wings, perhaps connecting to something yet-to-be-revealed. Halo 3: ODST and Half-Life 2 had similar high security metropolises. The city seems to be a dystopia. What do you think those sentinels are keeping you away from? The throne room of the final boss? Shao Kahn's MK3 fortress, set in NYC, could have been an inspiration.