Set to release on 28 September 2010 in North America and 1 October 2010 in Europe which is quite strange.
Feature list from Wikipedia;

More about Creation Centre off IGN;
http://au.ps3.ign.com/dor/objects/6...ccer-11-20100707024417095.html?page=mediaFull
Feature list from Wikipedia;
- Personality+ is a system intended to improve the way that players' individual abilities are reflected in-game, resulting in clearer differentiation between players. Personality+ utilises a database containing 36 attributes and 57 traits for each player, maintained by a worldwide network of 1700 scouts, editors, and reviewers.
- Pro Passing is a new passing system where the gamer's own accuracy with the control pad, as well as the situation and skills of the players on the pitch, determines the accuracy of each pass.
- Creation Centre is a new web-based application which allows the user to create material to download to their console and share with their friends. Created teams names, kits, players and home stadia can be customised and players can be edited in a more in-depth way than before.
- For the first time in the series the player will be able to create their own personalised soundtrack by importing their favourite music into the game. Customised chants can also be imported and a club's anthems and chants can be set to play during introductions, halftime, after goals, or at the end of matches. The player's virtual pro's name can be chanted in the stadium.

More about Creation Centre off IGN;
Dubbed the Creation Centre, it's a web-based application that allows player appearance, attributes and abilities to be edited as well as team names, stadiums, kits and crest ? all of which means we can finally resurrect our own beloved Deptford Wednesday.
"Having the ability to customize content in FIFA 11 to the degree where you are creating players and teams, choosing player attributes and managing team tactics effortlessly from the web opens up a world of possibilities of original content that fans will be able to create," said producer David Rutter in the official blurb.
