Ghost recently found an X-Wing vs Tie Fighter mod that incorporates all Wing Commander designs for its alternate reality "Rebel" fleet. The mod itself is called Path Not Taken and takes place in an alternate future where the Battle of Endor was won by the Empire. It seems to have been complete for years, and the shipset is downloadable for owners of XvT. The Wing Commander designs were originally made by Michael "Steele" Boewes. You can find the rest of the Wing Commander models used in the mod here. It's kind of interesting to see how they described each ship.
The Coalition was also at work developing a totally original starfighter design, meant to serve as the backbone of its infant fleet. This fighter, a symbol of the Coalition's resolve much as the X-Wing embodied the Rebel Alliance, is the F-106 Piranha.