Well, there are a few Virginian details that may be pertinent.
Richmond not only suffered for having been burned to the ground, but it was a center of industry prior to the war, and never quite recovered. Plus, the loss of West Virginia denied Richmond and other Virginian cities the coal reserves that could fuel it to be another Pennsylvania or New York. Spare Richmond and Virginia the Civil War, and with the abolition of slavery, Virginia will become as much a part of the Mid Atlantic states as Delaware and Maryland.
Another lesser used detail in AH, and one of the more fascinating missed opportunities is a town by the name of Big Stone Gap here in Virginia, which has massive iron and coal deposits in the vicinity. Prior to the Civil War, there were plans by several Virginian investors to make it into the "Pittsburgh of the South." Then the Civil War came along, Jeff Davis burns down Richmond, and they used that money to rebuild Richmond instead. So you could see a major industrial city spring up in Big Stone Gap, likely with an eventual name change, ala Big Lick into Roanoke.