[Worzel]

Exactly, it's almost certainly nothing. Though I was under the impression that the new joint channel will ultimately be named 'BBC News' in all territories?

As of currently I still haven't seen any signs of BBC World News Distributions providing guidance like new logos and channel names to its partners and cable providers. They're probably going to carry out the rebrand exercise during the transition period. 

The distribution partners page (www.bbcwwpartners.com ) still has resources dated back in the Gill Sans era...

They did send an email out to distributors asking them to update the name, logos etc on 3 February.

This was when the 3 April re-launch date was mentioned alongside the 'new presentational elements' line.

The email also included the new (basic) brand guidelines for the channel.