Yes, I heard Zabalaza before. By the way, can African anarchists speak Esperanto? I am a beginner.
African anarchists are not a homogenous group, and speak very many different languages depending on where on this vast continent they come from. But I have never met an African anarchist who speaks Esperanto. In fact, I don't think I've ever met
anyone – from anywhere – who speaks Esperanto, and to be honest I've never quite got the point of it. If you want to communicate with people in Africa then there's probably more chance of them knowing some Chinese or Mandarin than Esperanto, due to the massive number of Chinese people working in Africa (although English, Portuguese, French and Arabic would of course be more widely spoken). Swahili, however, is the most widely spoken African language, if you'd like to learn one

To answer your original question though; what's new in African anarchism is probably the (re-) emergence of the libertarian movement in North Africa.