I don't think south Africa really cares about the verdict. People all over the world can see Israel is ethnic cleansing Gaza. This is just an aggressive move against a western institution. From the brics point of view its a win win situation. ICJ does nothing or says Israel is not guilty they are corrupt. If they say Israel is guilty well it could be used to take actions against Israel.As we've known from the start, the ICJ is a western puppet institution, obviously. :
For those who want to follow SA ICJ hearing see link below.