Say for whatever reason RENAMO wins the Mozambique civil war. With a stable base of operation and the horrible state of Zimbabwean economy. Could Chimwenje emerge as major rebel movement against the Zimbabwean government as opposed to being destroyed in the mid 1990s.
https://en.wikipedia.org/wiki/Chimwenje
https://en.wikipedia.org/wiki/RENAMO#Activities_in_Zimbabwe
https://en.wikipedia.org/wiki/Chimwenje
https://en.wikipedia.org/wiki/RENAMO#Activities_in_Zimbabwe