One challenge is improving the algorithms of natural language processing by adapting to the specialist languages area such as medicine and finance, where Watson is learning to work.
The number of specialist announcers on the World Service English language service will shrink and a new management team will work across distribution, channel management and commissioning.
The scheme for children from nursery age upwards will follow the model established on that scheme of having all the teachers and assistants in the schools involved learning the language to be taught, rather than bringing in specialist teachers.
Dr Dimitra Fimi from University of Wales Institute Cardiff, a specialist on Tolkien's Welsh connections and his use of the Welsh language, will also attend the event.