The "Distant Worlds - Music from FINAL FANTASY" concert will be in Chicago on December 12, 2009. They are promising "North American Premieres, World Premieres, and works never heard outside of Japan" as part of their performance, as well as letting you know that Nobuo Uematsu will be performing.
You can find some more details, as well as information on purchasing tickets, on the official site.
Source: Distant Worlds Official Site
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