And why would Sony take out the 1080p 60fps statement from the site if it is true and they do have a marketing agreement with Ubisoft regarding this game. Everything Watch_Dogs related is linked to PS4, suddenly they would be shy about this?
I read this Edge article about the important persons at Ubisoft recently and this one guy clearly said that its Ubisofts goal to achieve 60FPS in every Ubisoft game.
So I really wouldn't be surprised if Ubisoft were aiming for 60FPS in Watchdogs, but the aren't sure yet whether they can make it or not, so they don't want to give out an official statement already.
Edit: That Golem article is rather negativ in terms of graphics, while they say that its a quite good looking game most of the time they criticize washed out textures, not enough anisotropic filtering(ring the alarm!), low res soft shadows, the lack of ambient occlusion(makes every object look like its floating in the air) and aliasing.
Thats probably why the said that they rather have 30FPS and those problems sorted out.
But its very suspicious that Sony goes ahead and makes a clear statement that its 60FPS on their website, how does this happen if its a mistake? Its not like they copied the description from an other version of the game which runs at 60FPS.
Then a usually very trustworthy outlet which had hands on time with the game claims that Ubisoft said the Ps4 version is going to be 60FPS.
Two very strange incidents if Watchdogs is actually 30FPS on Ps4.