I think DBXWD is a good choice.
I also think it's a good index to follow, but the costs are too high. Since you're already out of SA why not open an international brokerage account and buy VWRD. VWRD is the Vanguard FTSE All-World ETF. It tracks the FTSE all world index, which includes emerging markets. DBXWD tracks the MSCI world index which excludes emerging markets, which is likely why it has slightly underperformed the FTSE world. The TER is just 0.25% rather than 0.68% for DBXWD. If you really want a fund which excludes emerging markets, then rather buy SWDA. It also tracks the MSCI index, but at a TER of just 0.2%.
Both VWRD and SWDA are traded on the London stock exchange, but held in Ireland, which has big tax benefits (and decent estate tax laws). This means you won't have to pay local tax on the dividends as they are already taxed in Ireland. The maximum tax you will pay is 15%, but because some of the holdings don't pay that tax, it works out to about 11% tax at the moment.