A 40 minute gameplay presentation has already been shown in London, unfortunately there was a preview embargo set until the 18th, for the sole reason of letting websites get a comprehensive and well thought-out preview created instead of trying to be the first website to show the game off.
There is also going to be another presentation shown in the US tomorrow on the 10th,
Also, Sony has stated that they will release a video before the embargo lifts. Fortunately for us, after the presentation tomorrow, it is almost certain there will be leaks, just like there was when it shown in London. We should use this thread to discuss how we think the game will look/play, specifically for lems, so ownage can be delt accordingly.
My personal opinion, I think it will be the best looking/most technically advanced game ever shown on a console. I also believe there could be some innovative things shown in the gameplay.
Heres some recent pictures: