The first match isn't gonna make any changes to the points table based on the result. The second match is very important for South Africa, and they will make use of the home ground opportunity. Today's second match will be watched much by the cricket fans of New Zealand and South Africa. Semifinals are going to be interesting, Australia is very strong and rest of the teams were in the same level.
I hope that South Africa will lose today and New Zealand would be able to qualify to the semi-finals. Trans-Tasman encounters are always exciting, and this time Australia and New Zealand facing off in the Women's T20 World Cup would be exhilarating to watch. But given their current form, South Africa in all probability will qualify to the semi-finals as the second team from Group 1. Anyway, for India, it is almost certain that they will be facing Australia in the semis. It is going to be one of the most keenly awaited matches - Smriti Mandhana vs Ellyse Perry, Tahlia McGrath vs Renuka Singh.. and so on..