Forge has gotten some good press, specifically from GameSpy who asked if it was the "Post-MMO MMO". Unfortunately this intriguing idea is powered by the Unreal Engine, which is catastrophic for Eyefinity and Surround users.

The game has an FOV slider, which goes up to 110 degrees. Assuming the 90 degree baseline at 16:9, this would be enough for 21:9. Unfortunately the HUD and menus are both broken at anything above 16:9.

http://www.wsgf.org/dr/forge/en