What possibility is there of South Africa hammering out an racial-confessionalist style agreement in the 1980s or 1990s? I understand this is something that the NP was bargaining for in CODESA but by that time they'd lost most of their ground? What sort of conditions would need to exist for such a deal to come into place? I'm imagining an arrangement that has a white State President, and an black Prime Minister. Perhaps the Parliament would be 50% black, 30% white, 15% coloured, and 5% Asian. A sort of extension of the prior minority-representation arrangement.
Also, might increasing the number of Portuguese retornados and Rhodesian migrants help?