although it´s a possibility, that SR could join oneworld, i don´t think that SAA would go the same way. ok, SR owns 20% of them, but their part-ownership contract maintains that SAA can chose an alliance on its own. anyway, regarding the current fuss about SR, it´s still a possibilty that they´d give up on SAA, which would eventually lead to some major problems for SAA (their privatisation, plan, financially weak...). however, SAA is believed to follow a policy of being independent, not entering any alliance.
in addition, i don´t think MAS would join oneworld. i´d say they go for skyteam or wings.
If only pure sweetness was offered, why's this bitter taste left in my mouth.