I am Anthony Williams, I work as a gametester and have been fortunate enough to get my hands on the latest build of Fifa 11. I'm suprised about some of the changes they've made to the full game from the demo.
Let's break the game down...
Passing: So I mentioned big changes... The big change is that they have sort of mixed Assisted and Semi-Assisted and named it Pro-Passing, so it's either Pro-Passing or Manual you can choose between now.
The passes are also less forgiving, and you can't just tap the pass button anymore if you want the ball to reach the player. You also need to aim a little with the analogue stick to hit the player (just like in manual, but you don't need to be as accurate).
Pressure: Many complained about this in the demo. The pressure from the AI is really realistic, they try to save their stamina now and don't chase you around for 90 min. I noticed, when having the ball in my defense zone, that the attackers were just walking, just half-heartedly trying to chase you. It was first when I got into the midfield that the pressure started, but still not like 3 people sprinting after you. Feels spot on now imo.
Dribbling: Some people was talking about how it was impossible to dribble through anything with normal jogging or skilled dribbling without using skill moves, this has also been tweaked. I was able to take advantage of messi's fast close control dribbling, unlike in the demo.
Shielding: Also been a subject sometimes here on the forums... The shielding is more useful now, defenders can't just tackle you easily while being shielded. It still does happen of course, but it's more... realistic now.
Conclusion: Fifa is fantastic this year, the perfect pace, the passing, the smart pressure, the dribbling and the shots..
If you are a fan of football, then do not even think of buying any other football game than Fifa this year, this is as close as you get to simulation.
-Anthony
