I'd suggest that the whole concept of "risk" is so subjective that a question like "Do you think all routes to Cape Town will be too risky in the near future." cannot really be answered by anyone but yourself. Clearly, for some people it was already too risky before the current round of violence (c.f. #1). For others, not at all (see any of the ride reports, blogs or other correspondence from people who've traveled that route recently).
Personally, I'd be reluctant to venture far within Mali at the moment, but the route through Cote d'Ivoire looks increasingly safe....relatively speaking. But all that might change in the coming weeks, months or years--for better, or for far, far worse. None of us really knows.
And as for Capetown being a risky place: feh.