If that's what will be coming, and they'll stick to their TERs then it's a no brainer for me, SWDA (developed world) and EIMI (developing world) in probably a 85% 15% split* to represent the whole world. The combined TER should end up being around 0.21%. They accumulate, so dividends are automatically reinvested, some people like that, others don't, I'm neutral on it.
But here's what I don't get, SWDA is pound denominated, and eimi is $ denominated. I can't see how they could list those on the JSE, not without doing the currency exchange and adding to the TER at least. Hope I'm wrong...
*I currently put my offshore money into VWRD which is the equivalent of the above two funds, though non accumulating. It's TER is 0.25%, so maybe I should start doing IWDA (the $ based version of SDWA)/EIMI and save 0.04%