You can never go back.
In the first place, a majority of Zimbabweans probably buy into the 'restoration' of black dominance over white 'outsiders'.
Second, far too few whites would be willing to return, they'd have little to work with, and the word 'carpetbagger' comes to mind.
Third, other African states would go nuts opposing any progress.
And, if by chance they were able to make it work, and as soon as protocol allowed for it; the campaign to end apartheid / white dominance / colonialism would start all over again.
Yep. I realize all that. That is why Africa is destined to be a craphole for the forseeable future.