I wonder if, in the unlikely event that the CSA manages to survive, contiguous sections of (let's say) Alabama and Mississippi might have been ceded to yield an African-American state; that is, one that is not simply a majority but heavily to overwhelmingly African-American? I believe that in the 19th century, there were counties in both states that had an absolute majority of African-Americans in the population--but given the laws of the day, a vanishingly small fraction were able to vote and participate in government once Reconstruction ended.
If--and that's a huge "if"--the cession occurred, I wonder if such a state would likely be poorer than Mississippi (no mean feat) and quite likely both land-locked and predominantly rural: that is, a semblance of the Mississippi Delta region on a somewhat grander scale? Can't see any land cessions allowing this would-be state to have access to the Gulf, even if it's a sliver no more than a couple of miles wide. Note, however, that there's some area along the southernmost MS-AL border that today is occupied by a coastal preserve and a wildlife management area. That area was probably uninhabited wetlands at the time, and might become part of this nascent state. Today it might have a modest coastal town that would be reminiscent of, say, Port Norris, NJ, or Port Penn, DE, both on the Delaware Bay.