Agreed with the More Industrial, the West Plains would be a Settled Faster to Expand Business Sectors there and i think there would Be a Standing Army instead of disbanding it with the CSA in the South Still there
Pre-civil war the US was a major maritime nation (Salem, Mass then other, bigger ports had extensive trade with China), so I think it'd develop in a more mercantile direction, particularly given possible difficulties obtaining cotton etc. from an independent south. Perhaps the flag would follow trade, leading to a significant US empire.