NBO is a well-known hub with 2 flights a day (KLM and KQ) - and the KQ flight (arriving in the morning) gives excellent connections to many other places within Africa. Maybe they want to improve upon those from/to NBO. But KLM and KQ service the same African countries so perhaps they are also talking about improving connections beyond Nairobi. Just a guess.
For a very frequent traveller to and within Africa, I am very curious to find out more as well!