I doubt that will happen. Carlisle Events who owns the fair grounds that GM Nationals are held at is the company actually running the GM Nationals (along with other shows they operate). The manufactures like GM may sponsor or have involvement in the show, but ultimately, this is all managed by Carlisle Events.

On the plus side, you can always rely on the location for the event

 

Thanks everyone, and to echo what Jason said. This particular show probably will never move. Its put on by Carlisle events in Carlisle, PA a their own fairgrounds. Monte nationals is the show that moves around.