here's a little video-preview made by an italian videogames website (PS4 footage). The guy interviewed one of the developer and asked him if the game was actually downgraded or not. The developer said that the game wasn't downgraded, and that Ubisoft developers team postponed the release of Watch_Dogs 'cause they wanted to polish the game, include more features and "connectivity" and they also added some extra audio-recording that you can hear when you walk on your own in the streets.
The guy who interviewed him btw said that the game looks great during night but it doesn't look as good during day-time. He also said that there were PS4, XBOX One and PC platforms and that the PC version looked a bit better than the console version (but not by that much. He said that the most tangible difference was the higher frame-rate on PC).
Also the PC version suffered a bit from tearing.Edited by Murder3D - 4/23/14 at 2:19pm