South African chapter is really welcome. South Africa is a large country with many native cultures. Realising the Wikimedia aim is going to be an epic journey.
South Africa is a multi cultured country that is developing its infrastructure quickly, it is a magnet for people from other African countries and as a consequence it is rich in opportunities. There are many Wikipedias for languages native to South Africa. Zulu, Xhosa, Afrikaans even English qualifies.
As a large part of the population is young, there are plenty opportunities to reach out and build both an audience and an editor community.
This will work once people understand that it is their Wikipedia to write and it will get its public when these Wikipedias are relevant in the content they provide.