Roger Blench notes a couple additional possibilities:

Roger Blench suspects it may form its own branch, though perhaps not far from the Kwa languages.

Roger Blench notes morphological similarities in all putative branches, which leads him to believe that the family is likely to be valid.

Roger Blench discusses the theory in relation to language families.

Her unpublished work is being edited by Roger Blench.

Roger Blench (born 1953) is a British linguist, ethnomusicologist and development anthropologist.

An Afrihili newsletter (1971 version) on Roger Blench's website.

Roger Blench, 2011, Should Kordofanian be split up?

It was first reported online by Roger Blench.

A dictionary of Eggon, edited by Roger Blench (in preparation)