Could see places like Tennesse and Virginia being much more industrialized earlier, too, without being the theaters of operation for most of the war, which will likely change their demographics/attractiveness to immigrants earlierAlso we won't see a big Solid South ITTL I expect. OTL the Lost Cause managed top gain a big following even outside the actual historic CSA, heck there was a statue to Jeff Davis in the capital of Kentucky. Here with so man Southern. Slave states remaining Loyal to the Union I expect the CSA will be remembered much less as key to "Southern heritage" with the division of who rebelled and who remained loyal being a potent dividing line amongst the former slave states. Of course we could see plenty of whitewashing for planters and such who remain loyal with the idea being the CSA was only the radical slavers as opposed to the more 'loyal and moral' unionist slavers.