Many would vote for change, change the very things that made them see the need to emigrate, such as the corrupt ANC's refusal to tackle the crime problem, AA/BEE/EE etc. and many would consider returning if they saw positive change in these areas.Ahh, excellent observation. I fear many expats when moving might view the country as a lost cause and reason, "Why bother". I hope i am wrong though.
Many still have family, property and other investments in SA, and would love to return if things improved, and the only way that can happen is if the ANC lost the majority, or better still were ousted.