The genealogical relationships within the Zo languages, and their connections to the broader Sino-Tibetan family, remain unresolved and require further research.
While "Kuki" and "Chin" are largely synonymous, the term "Zo languages" is preferred for its cultural and linguistic accuracy.
This classification highlights the need for ongoing research to clarify the relationships and heritage of the Zo languages while providing a more accurate representation of their shared linguistic and cultural affinities.
The established branches are: The Konyak languages of Nagaland, also spoken by ethnic Naga, are not grouped within Kuki-Chin–Naga, but rather within Brahmaputran (Sal).
Ethnologue adds Koki, Long Phuri, Makuri, and Para, all unclassified, and all distant from other Naga languages they have been compared to.