Both would co-exist with each other but there's no way that traditional banks would be adopting or integrating or cooperating with crypto even if they do tend to plan with such thing but we know that
crypto is decentralized in most projects that is existing.There's no way that they could really be having that full control which simply implies that it would really be totally opposing their overall
preference in terms of centralization thats why its not surprising that they do really always made out some counter move towards crypto if they do have the chance.
So dont expect that everything would goes well in between the two.