Sihle Zikalala's survival rests on him ditching ANC NEC and Ramaphosa after three of KZN's largest regions went to RET; else, I don't see him returning. Musa Cebekhulu is not a member of the RET, therefore this was a huge blow for the RET.
Thembo and Mdumiseni Ntuli are brothers and both ANC members, but Thembo is RET and Mdumiseni is CR17. Thembo is also campaigning for Nomsa Dube to replace Sihle and Kaunda to replace his brother Mdumiseni. Older brothers seem to be poor in thinking, younger ones, sober minded, look at the Mbeki.
If Sihle Zikalala doesn't break with the ANC National Executive Committee and Cyril Ramaphosa if three of KZN's main areas vote for RET, I don't see him coming back. His political future depends on it. As a result of the fact that Musa Cebekhulu was not a part of the RET, this was a significant setback for the RET.