What I see...
- different car
- different time of day
- different camera behavior/angle
- heli vs no heli
- wet vs dry road
- new effect of "blinking" bridge when it is hacked
Someone more technical should point out what they really see as a "downgrade", so I can understand.
You might want to watch the actual source. The cars are different but that wouldn't affect the rest of the elements.
It's the same time of day, night time.
Camera angle is very similar, wouldn't really affect other elements
There's a helicopter in both scenes, both with a spotlight on the car
That blinking bridge is just annoying, nearly as bad as the orange outline on all of the usable items in Deus Ex: HR
I'm still planning on purchasing the game as I still think it will be an enjoyable game but I'm not going to deny that there has been a graphical downgrade since the reveal.