[Stuart]

The output will be fully joined from March 6th with a full launch date of April 3rd. During this transition period, there will be no planned facility for breaking UK news.

Will BBC World News also lose its branding from 6 March, just to be known as BBC News from this date? Or will that happen from 3 April?

The on-screen branding may well change, but even now many of the Presenters still refer to it as just 'BBC World', just as the domestic channel talent kept saying 'BBC News 24' for many years after the change of name.

I suspect the same will happen on the new combined channel for some time.